问题
Among the four of us, Simon spends __________ time __________ his hobbies
A:what were they doing
B:what they were doing
C:what are they doing
D:what they are doing;
B:what they were doing
C:what are they doing
D:what they are doing;
正确答案是：
同类题型
He was educated at the local high school, ______ he went on to Beijing University.
The mother didn’t know _____to blame for the broken glass as it happened while she was out.
Why do we have to _________ Sue’s selfish behavior? We have to teach her to care for others.
I am sorry for having been so rude to you.———That’s OK. I am sure you didn’t___________.