—How often do you do sports? —I do sports______ /twaɪs/ a day.
| A．twice | B．twins | C．tooth | D．tries |
---Doyouthinkgrandpaandgrandma_________late? ---No，thetrainisusuallyontime.
| A．were | B．havebeen | C．was | D．willbe |
Breakfast at home is healthy and delicious， ________ I have to eat breakfast on the way to school because I can’t get up so early.
| A．and | B．but | C．so | D．or |
I'm afraid your dad can’t join us for lunch．He_______ a speech on Chinese art to the first-year students in the hall.
| A．gives | B．has given |
| C．is giving | D．gave |
---Would you like an apple pie for lunch? I'll make it for you．
---Honey， you_______．Let’s go out to have something different．
| A．mustn’t | B．needn’t |
| C．can’t | D．shouldn’t |
---I'm sorry I can’t find the library book anywhere．---So I'm afraid you have to_______ it．
| A．send for | B．thank for |
| C．pay for | D．wait for |