-What courses are you going to take next semester if you want to receive enough credits to get your degree?
问题描述：
-What courses are you going to take next semester if you want to receive enough credits to get your degree?
-I don't know.But it's about time____on something.
A.I'd decide B.I decided C.I decide D.I'm deciding
答
B
1 it's (about/high)time for sb to do sth
2 it's (about/high)time sb did sth 这里从句里的谓语动词用过去时.