You never know how much difficulty we had ______the problem. Luckily, we managed to solve it with Mrs Wu’s help.
The Beatles began to be popular ______ in the USA.A.in the 1960s B. in the year1960 C. in 1960’s D. in 1960
--When did you become a volunteer for the elderly?-- Two years ago. I ______ this group since then.
He met many problems ______ he was going over his lessons.
--What about finding out ______ Alice is going to Wuxi?--I’m afraid her friends have told her Wuxi has many places of great interest.
--Just a minute. I’ll go to get some apples for you.--Thanks, but you ______ get too many. One is enough.