问题

I don’t think possible for us to learn a foreign language well without hard work.
A:them
B:this
C:it
D:that
B:this
C:it
D:that
正确答案是:
同类题型
My mother likes volleyball. She thinks (认为) it is _______.
It’s so dark that we can’t go _____ the forest .[ ]
More than _____children took part in activities last month.
The students were all tired, but ___ of them stopped to have a rest.
My school is different __ theirs. It has many after school clubs.[ ]