_________ the math problem is difficult, I’ll try hard to work it out.
A. When B. Though C. Before
—________ is the pay phone?
—It’s behind the bank.
| A．Who | B．What | C．When | D．Where |
Do you enjoy ________ Chinese in our school, Bob?
| A．learn | B．learning | C．learns | D．to learn |
—How is it going?
— ________.
| A．It’s windy | B．Not bad | C．It’s raining | D．It’s sunny |
— ________ is the weather in Linshu?
— ________ windy.
| A．What; It’s | B．How; It’s | C．How; It | D．What; It |
It’s so noisy. I can’t _____.
| A．go to bed | B．fall sleep | C．fall asleeping | D．fall asleep |