—I think the man over there must be Bob.
-- It _______ be him. He has ______ to Australia.
| A．can’t, gone | B．can’t, been | C．may not, been | D．mustn’t, gone |
I prefer musicians write their own lyrics.
| A．what | B．which | C．who | D．whom |
— Did you do on your vacation?
— Yes, I visited my grandma. We had a great time.
| A．something interesting | B．interesting something |
| C．anything interesting | D．interesting anything |
This hat be Lucy’s. She never wears hats.
| A．mustn’t | B．must | C．can | D．can’t |
— dog is this? It’s really lovely.
— It’s Mary’s.
| A．Who | B．Whose | C．What | D．Which |
She has a sweet tooth. She likes all kinds of desserts, such as cake and ice-cream.
| A．长了一颗蛀牙 | B．喜欢吃甜食 |
| C．牙齿好 | D．牙齿不好 |