Modal Verbs - Secondary 1

Motorcross bikers must wear a helmet because it is a safety requirement and obligation. Wearing a helmet protects the biker's head and reduces the risk of serious injury or even death in the event of an accident. It is crucial for motorcross bikers to prioritize their safety and follow the rules and regulations to ensure a safe riding experience.

The word "should" is the correct answer because it suggests that it is advisable or recommended for BASE jumpers to obtain permission before jumping. While it is not a strict requirement or obligation like "must," it implies that it is the responsible and ethical thing to do. "Can" indicates the ability to obtain permission but does not address the necessity, and "must" implies a mandatory requirement which may not always be the case for BASE jumping.

The word "must" is the correct answer because it indicates a necessity or obligation to pay at the cash register before leaving the store. This implies that it is a requirement or rule that must be followed.

The word "can" suggests the possibility of something happening in the future. In this case, the sentence is stating that it is possible for a scooter to become an Olympic discipline one day.

The word "must" is the correct answer because it indicates a requirement or obligation. In this context, it means that it is necessary for individuals to be 15 years old in order to enter the competition.

The correct answer is "cannot" because it indicates that Emmy is not able to go bungee jumping due to her fear of heights.

The word "can" suggests the possibility of winning the rock-climbing contest if the person practiced. It indicates that the person has the ability or potential to win if they put in the effort and preparation required.

The correct answer is "cannot" because it indicates the inability of the mountain climbers to reach the summit through that pass.

The word "should" is the correct answer because it suggests a strong recommendation or advice. While it is not mandatory or required to wear a helmet when skiing, it is highly recommended for safety reasons. "Can" implies permission, and "must" implies a requirement, neither of which accurately convey the intended meaning of the sentence.

The word "must" is the correct answer because it expresses an obligation. The sentence suggests that trying scuba diving is something that is strongly recommended or necessary to do at least once in a person's lifetime.

The correct answer is "must not, mustn't" because both "must not" and "mustn't" express a negative obligation or prohibition. They indicate that it is not allowed or forbidden to eat in the school library.

The correct answer for this question is "should not, shouldn't". This is because the phrase "should not" and its contraction "shouldn't" both convey a negative advice or suggestion. In the context of the sentence, it implies that the person being addressed is advised against participating in the race.

Participants must not sign a permission form first. The use of "must not" indicates that it is prohibited or not allowed for participants to sign the form. "Mustn't" is a contraction of "must not" and has the same meaning in this context. Both options convey the idea that signing the permission form is not a requirement or obligation for the participants.

The correct answer is "cannot, can't". Both "cannot" and "can't" are contractions of "can not" and are used to indicate the inability to perform an action. In this case, the blank is asking for a word that expresses the negation of the ability to swim.

The correct answer is "can". This suggests that there is a possibility that a safety harness may cost at least 100$. It implies that the cost of a safety harness could be equal to or greater than 100$.

The correct answer for the given question is "cannot, can't". Both "cannot" and "can't" are negative forms of the modal verb "can" which indicates the inability to do something. In this context, the sentence suggests that beginners are not able to enter the competition.