I'll be out for some time. ______ anything important happens, call me up immediately.
A.In case B.As if
C.Even though D.Now that
I’ve ordered some pizza, so we _______ worry about cooking when we get home tired.
A.can’t B.dare not C.needn’t D.may not
She drove so fast at the turn that the car almost went _______ the road.
A.on B.along C.from D.off
—I spent two weeks in London last summer.
—Then you must have visited the British Museum during your stay, ______________ you?
A.mustn’t B.haven’t
C.didn’t D.hadn’t
--- Jack, I’d like to have your opinions about my written report.
--- _______. But I have one suggestion.
A.That’s a good idea B.You are too modest
C.It looks fine to me D.You should check it first
Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.
A.whether B.why
C.when D.how
