Many of the world"s plants and animals have already___ , and several other spe
题型：同步题难度：来源：
| Many of the world"s plants and animals have already___ , and several other species are endangered. |
| [ ] |
A. died away
B. died out
C. died down
D. died off |
答案
| B |
举一反三
— Are you a teacher?
— No, but I _____. |
| [ ] |
A. used to
B. was used to
C. used to be
D. used to do |
| He hadn"t seen his mother for a long time, so when he saw his mother he ____ crying. |
| [ ] |
A. burst into
B. burst out
C. broke out
D. broke down |
| I"ll never understand how it ___ that you were late for class four times within a week ! |
| [ ] |
A. came out
B. came across
C. came about
D. came into being |
| Tom pretended ____it, but in fact, he knew it very well a long time ago. |
| [ ] |
A. not to listen to
B. not to hear about
C. not to have heard about
D. not to be listening to |
| WhateVerhe promises, you can"t ____ anything. |
| [ ] |
A. rely his doing
B. rely on him to do
C. depend his doing
D. advise him to do |
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