问题

The natural environment should be protected because of the important role _______ plays in human survival and development.

A:which
B:the one
C:it
D:that

正确答案是：

同类题型

lly, senior citizens enjoy their freedom andthey prefer to live on their own _________ they can.

Every year large quantities of water in the rivers _______ polluted and _______ money is spent solving this problem.[ ]

There is so much delicious food in the menu. I can’t decide .

Which underlined part is different from the others in pronunciation

There was a lot of fun at yesterday’s partyYou _______, but why didn’t you?