问题

The more one is ________ the Englishspeaking environment, the better he or she will learn the language. [ ]

A: exposed to
B: filled in
C: caught on
D: kept up

正确答案是：

同类题型

As the world’s population continues to grow, the ______ of food becomes more and more of a concern.

go Dutch for this supper, OK–No, _______ this time, as a reward for all your help.

________ I got on the bus, he got off.

The black horse is ______ of thepair

Planting the trees us ten hours last Saturday.