问题
My father is busy _____ the moment. [ ]
A: in
B: on
C: for
D:at
B: on
C: for
D:at
正确答案是:
同类题型
My headache _________ me. I thought it was going away, but now it’s getting worse.
Would your younger brother like to go for a picnic with us this Sunday? — If I don’t go, _____. [ ]
The population of the world has grown very fast ____ four hundred years. [ ]
I will go to Dalian for a visit with my family during the holiday. — ______. [ ]
It is ______ he often fails in exams ______ makes his parents worried about him.