Don’t touch anything in the room _____ the hostess tells you to.
A. if B. though C. unless
— How long have you been in Shanghai?
— It _____4 years since we ______here.
A. is; moved
B. has been; has moved
C. was; moved
It’s _______ for us to finish the work in a day. We need at least three days.
A. impossible B. excellent C. cruel
As you see, the number of cars on the roads _____ these days.
A. keeps rising B. keep rising C. keep to rise
— I don’t know ________to the railway station.
— Don’t worry! I will show you the way.
A. how to get B. how will I get C. when to get
—Sorry! I have difficulty _____what you said.
—OK. I will say it more slowly.
A. to catch B. catching C. catch