— I didn’t know you were friends with Mr. Smith.
— We ______ each other for6 years.
A. knewB. are knownC. have knownD. will know
When I was a boy, I often ______ to play in that park.
A. went B. have gone C. go D. will go
— ______ do you go to the gym?
— Once a week.
A. How farB. How oftenC. How longD. How soon
Nowadays it’s very useful ______ a foreign language.
A. learnB. learnedC. to learnD. learns
His English is as ______ as his Chinese.
A. goodB. betterC. best D. the best
— Did you see the film last night?
— No, I ______ some shopping at that time.
A. am doingB. was doingC. didD. will do
