Question

It is difficult for any of us to eat better, exercise more and sleep enough _________ we know we should.

A．despite

B．even though

C．as if

D．unless

Answer 1

B

考查词性词义：A. despite介词，虽然，B. even though连词，既然，C. as if 连词，好像，D. unless连词；除非，句意是：我们每个人想吃得好，多锻炼，睡眠足够都很难，即使我们知道应该这么做。选B。A的词性不对。