—Why aren’t they here yet?
—They _______the bus.
A.can have missed B.must be late for
C.may have missed D.might be late for
—Why aren’t they here yet?
—They _______the bus.
A.can have missed B.must be late for
C.may have missed D.might be late for
C
他们未何还未到?可能是未赶上汽车。表示对过去事实的猜测。故选C。