Adverbial Clauses:Choose the best answer.

Adverbial Clauses:Choose the best answer.
1.--It costs me too much to have my car repaired.
--Why don’t you sell it _______ it is still running?
A.before
B.until
C.while
D.once
2.________ human beings live in large numbers,the waters are very likely to be polluted.
A.That
B.Where
C.Once
D.As
3.–Why do you drink so much coffee?
--Well,_______ it doesn’t keep me awake at night,I see no harm in it.
A.although
B.as long as
C.while
D.where
4.I was advised to arrange for insurance _________ I needed medical treatment.
A.in case
B.so that
C.although
D.if
5.–Did you remember to give Mary the money you owned her?
--Yes,I gave it to her _______ I saw her.
A.while
B.the moment
C.suddenly
D.once
6._______ the Internet is bridging the distance between people,it may also be breaking some homes or will cause other family problems.
A.When
B.While
C.If
D.As
7.I would never speak to someone like that _______ they said something unpleasant to me.
A.even if
B.so that
C.as if
D.ever since
8.______ time went on,our teacher’s words proved true.
A.As
B.While
C.With
D.When
9.The famous scientist grew up ______ he was born and in 1930 he came to Shanghai.
A.when
B.whenever
C.where
D.wherever
10.–Don’t always answer me with a simple “Yes” or “No”.Explain ______ possible.
--OK,I’ll try my best.
A.whatever
B.whenever
C.however
D.whoever
11.So difficult _______ it to live in an English-speaking country that I determined to learn English.
A.I have felt
B.have I felt
C.I did feel
D.did I feel
12._______ you are leaving tomorrow,we can have dinner together tonight.
A.For
B.Since
C.When
D.While
13.It is generally believed that teaching is ______ it is a science.
A.an art much as
B.much an art as
C.as an art much as
D.as much an art as
14._______ journalism seems like a good profession,I would prefer to be a teacher.
A.Although
B.Even
C.No matter
D.Now that
15._______ I know the money is safe,I shall not worry about it.
A.Even though
B.Unless
C.As long as
D.While
16._______ he goes,Juan makes new friends and has wonderful adventures.
A.However
B.Wherever
C.Whenever
D.Whatever
17._________,I have never seen anyone who’s as capable as John.
A.As long as I have traveled
B.Now that I have traveled so much
C.Much as I have traveled
D.As I have traveled so much
18.I would appreciate it ________ you call back this afternoon for the doctor’s appointment.
A.until
B.if
C.when
D.that
19._______ you call me to say you’re not coming,I’ll see you at the theatre.
A.Though
B.Whether
C.Until
D.Unless
20.If we work with a strong will,we can overcome any difficulty,________ great it is.
A.what
B.how
C.however
D.whatever

小孩子有时间打这个不如自己做啊,才10分,我就路过好了
第一个选c