单项选择题
The medicine （） cool, clean and dry.
A.must keep
B.must be kept
C.must be keep
D.must be in
点击查看答案&解析
相关考题
-
单项选择题
“Must we start the experiment now?” “No, you （）.”
A.won’t
B.needn’t
C.can’t
D.may not -
单项选择题
He keeps（）at himself in the mirror.
A.to look
B.looking
C.look
D.looked -
单项选择题
Don't disturb me. I（）letters all morning and have written ten so far.
A.write
B.have written
C.was writing
D.have been writing
