---Where is my reference book? It was he
题型:选择题
问题:
---Where is my reference book? It was here a moment ago.---Someone ___ it by mistake.
A.could have taken
B.must take
C.might take
D.must have taken
---Where is my reference book? It was here a moment ago.---Someone ___ it by mistake.
A.could have taken
B.must take
C.might take
D.must have taken