I haven’t had enough _______recently, so I’m always _______all day.
| A．sleep, sleeping | B．asleep, sleepy | C．sleepy, sleep | D．sleep, sleepy |
Only when the work is done ________ be able to go back home.
| A．you have | B．you will | C．will you | D．have you |
In this exam, you’re asked to write a composition of about ________.
| A．90-words | B．90-word | C．90 words | D．90 word’s |
A direct order like “ Daisy, pass me the book” sounds rude. We’d better say: “________”
| A．Daisy, could you please pass me the book? |
| B．Daisy, I wonder if can you pass me the book. |
| C．Daisy, give me the book! |
| D．Daisy, I wonder you can pass me the book. |
— Come and join us, Ben!
— I’m afraid I can’t. I’m too busy now. If I ________ time, I would certainly go.
| A．had | B．will have | C．have had | D．have |
Which of the following does paper burn in?
| A．CO2 | B．N2 | C．He | D．O2 |