---Mr Ding,I have some trouble ______the passage!
----Remember _____it three or four times at least !
A,to understand ,reading B.understanding ,reading
C,understanding ,to read D,to understand ,to read
There are so many kinds of pens in the shop ,I can’t decide ______.
A. when to buy B.where to buy C.what to buy D.which to buy
The young man used to _____to work, but he is used to ______to work now.
A. drive, walking. B.drove, walked. C.drive, walks. D.driving, walk
---Please turn off the light. ---OK, Mom. I won’t leave the room _____ the light _____.
A. when; on B. with; on C. with; off D. when; off
--- He went to see the man who was in hospital yesterday.
--- ____________.
A. So did we B. So we did C. We did so D. Did so we
_ he tried many times, he still couldn’t move the heavy box.
A. So that B. First of all C. Even though D. In the end
