题目内容：

1.Trees can keep water from______(run)away.2.He did not know his parents______when he got up th
1.
Trees can keep water
from______(run)away.
2.
He did not know his
parents______when he got up that day.A.went B.have gone C.was going D.had gone
3.
What are you nervous______?A.in
B.at C.on D.about
4.
After receiving education,he
changed a bad boy______an honor student.A.to B.in C.for D.from
5.
The dog rushed to the nearest
village______it could get someone to help his drying owner A.where B.which C.that
D.so that
6.
Suppose your teacher could not
come,who______his plane?A.took B.will take C.would take D.takes
7.
I do not think ads are very
useful,______?A.do I B.aren’t they C.are they D.do they
麻烦再说明理由,

优质解答

1,running,from是介词,后面加动词ing
2 d,he did not know ,是过去式,而他父母走是在这之前,所以应该是过去完成时
3,about ,nervous about 固定短语,因为什么而担心
4 ,C,从什么变成什么,用TO
5,D,so that ,以便于 固定短语.符合句意
6,C虚拟语气,suppose,是假设什么,后面用虚拟,所以加would
7,d,反意疑问句提问,前面用否定,后面用肯定
如有不懂,欢迎追问,