Choose the best answer. (Em hãy kéo, thả đáp án đúng vào chỗ trống)

mustn't /  don't have to

You ….  tell anyone. It is a big secret.

Choose the best answer to complete the sentence.

You _______ across the road without looking around.

Choose the best answer to complete the sentence.

I _______ do my homework. My teacher said so.

Choose the best answer. (Em hãy kéo, thả đáp án đúng vào chỗ trống)

mustn't/ don't have to

You …  drive there. You can take the train.

Choose the best answer to complete the sentence.

We _______ eat sweets in the classrooms.

Choose the best answer to complete the sentence.

You _____ pick up flowers in the school garden.

Choose the best answer to complete the sentence.

This is the smoking room at this airport . You ______ smoke in this room.

Choose the best answer. (Em hãy kéo, thả đáp án đúng vào chỗ trống)

Must / have to

I …  go. Otherwise I’ll miss the train.