How do you suppose it is _____he arrived here ?A when B before C after D since
Students are encouraged to _________ the design competition for robots at the university.
Having fish at meals regularly can be of great _________ to your heart.
I don’t think highly of this kind of flower — _________, I don’t care for it.
Little Tom easily ________ himself to the American life as he moved to the USA with his parents when he was only three.
— I don’t think this TV set is of good quality. Can you replace it with a new one?— ___________. But I have to talk to my manager first.