You ___________ a better mark, but you didn’t work hard.
A.could have had B.would have had C.must have had D.must have
—Is Robert coming by coach?
—He should, but he ___________ not. He likes driving his car.
A.may B.could C.need D.must
This computer is of good quality. If it ___________ break down within the first three months, we would repair it at our expense.
A.would B.were to C.could D.might
If they had informed us, we ___________ here now.
A.would not come B.would have come C.will not come D.may not come
___________ ten years younger, I would study abroad.
A.If were I B.I were C.Were I D.Was I
Without your instruction, I ___________ such great progress.
A.cannot make B.will not make C.had not made D.could not have made
