I ______ that he’s a hardworking teacher．
| A．never doubt | B．always doubt | C．seldom ask | D．often wonder |
We have been good friends for many years. We often______each other on the Internet.
A. pick up
B. are angry at
C. keep in touch with
_________ the math problem is difficult, I’ll try hard to work it out.
A. When B. Though C. Before
— I heard the weather of North China is very cold in winter.
— I’m sure you’ll __________ it very soon if you come.
A. be used for B. used to C. get used to
— What do you think of Putian at present?
— Wonderful! Great changes __________ in Putian.
A. have taken place
B. have happened
C. took place
— Chen Lin’s spoken English is very good.
— ___________ She often talks with her teachers in English.
A. So she is. B. So is she. C. So it is.