---Who__the classroom just now?---Tom___
问题描述:
---Who__the classroom just now?---Tom___
A.cleaned,did
B.clean,does
C.cleans,did
D.cleaning,do
答
A
有just now(刚才),表示明确过去时间的状语,因此前面要用一般过去时,选过去式 cleaned / did