ĐỘNG TỪ MODEL VERBS - HOÀN THÀNH - E.12

Help

1. I can’t find my purse anywhere; I __________ (must / leave) it at the office.

must have left

2. The first question ___________(must / answer) before you attempt the others.

must be answered

3. There are a lot of tickets left, so you ___________ (needn’t / pay) for the tickets in advance

needn’t pay

Unlock this slideshow and over 4 million more with Baamboozle+

Try slideshows