请帮忙3道选择题

来源:百度知道 编辑:UC知道 时间:2024/06/28 05:22:47
1. _______ you return those books to the library immediately, you will have to pay a fine.
a. Until b. Unless c. If d. Provided
2. When you worry you can’t sleep and when you can’t sleep you worry ____.
a. much more b. even more c. many more d. few more
3. The river was high because it _____ for several weeks.
a. had been raining b. was raining c. has been raining d. rained
请选择并讲讲为什么。谢谢!

1.b
句子的意思是
你如果不马上(immediately)把书还来,你必须要……
2.a
比较级前只能加a lot,much,even,still这些
3.c
表示一种持续的状态 并还可能继续持续下去

b a c

1.B unless=if not
2.A 更多
3.C for several weeks说明还没结束