问题
The students were ___ over the ___ problem,listening to the teacher with a____ expression on their faces.[ ]
A: puzzled; puzzling; puzzling
B: puzzled; puzzling; puzzled
C: puzzling; puzzling; puzzled
D: puzzling; puzzled; puzzling
B: puzzled; puzzling; puzzled
C: puzzling; puzzling; puzzled
D: puzzling; puzzled; puzzling
正确答案是：
同类题型
You shouldn’t only trust him You’dbetter the truth of the whole thing foryourself
The poor man, _____, ran out of the dark cave. [ ]
Is your headache getting _______ —No, it’s worse.
There is _____ evidence that cars have a harmful effect on the environment.
When you are reading, make a note of _______ you think is of great importance.（2006年东北八校联考题）