B. Directions: Answer the following statements. Encircle the letter of the

correct answer.

1. You ____ use calculator during examination.

a. may not b. can’t c. must not

2. The students _____ go to the library because it is closed.

a. may not b. can’t c. must not

3. People ________ remove their facemask in a crowded place.

a. may not b. can’t c. must not

4. Claire ______ forget to wash her hands before she eats.

a. may not b. can’t c. must not​