为什么有的时候是I think 有的时候是I think it is difficult to do sth
为什么有的时候是I think 有的时候是I think it is difficult to do sth
请问是I find it difficult to do sth还是I find it is difficult to
I think it necessary to do sth.还是 I think it is necessary to
i think it important to do sth
① I think it my duty to do sth.和 i think it IS my duty to do
将来时will be有的时候是WILL BE有的时候是WILL 怎么区分 为什么?如:I will do my home
什么时候用it什么时候用it is,如I think it difficult to do my homework.
I think it is difficult to do the work in an hour.句子正确吗?
用to ,it,do,think,well,is,anything,I,difficult.造句
I think geography is difficult to learn it.
I think it difficult to answer this question 为什么可以it 不加is?
I think it adj的比较级 to do sth.