You have failed two testsYou’d better start working har- der,________you won’t pass the course.[ ]

Our parents are always strict____ us , especially ____our studies.

uple did have a quarrel about money last night,but now they have already

I get up early ____ the morning, but ___Sunday morning I get up very late.

Mr Obama, who appeared to take the lead in the race inmost battleground states, seemed to______ an air of caution throughout thefirst Presidential debate