It is already well understood___________ causes the global warming.
A. what B. when C. how D. that
___________we’ll go camping tomorrow depends on the weather.
A. If B. Whether C. Where D. That
_________he said at the meeting astonished everybody.
A. It B. That C. What D. The fact
Obviously they didn’t see the significance of the plan. That’s __________the problem was.
A. why B. where C. that D. how
. -----Are you still thinking about yesterday’s game?
-----Oh, that is ____________.
A. how I feel excited B. if I feel excited
C. what makes me feel excited D. why makes me feel excited
. As soon as he comes back, I’ll tell him when ___________.
A. you will come again B. will you come again
C. you come again D. do you come again
