问题

______they have been workinghard to find
A:Is that what
B:Is that
C:It is that
D:Is it that
B:Is that
C:It is that
D:Is it that
正确答案是:
同类题型
-Where is Susan-Oh, she lives in England, so I ____________see her.
Happy birthday!— Thank you! It’s the best present I________ for.[ ]
I’m interested in ________ you have said.
I walked up to the top of the hill with my friends, _____ we enjoyed a lovely view of the lake.
ver there—there’ s a very long, winding path_________ up to the house