1.You’d better come back earlier_Ait is getting colder.a.as b.and c.but d.or
2.He was walking aong the sands_B_he saw a big footprint in the sand.a.while b.when c.as d.which
3.A__they visited the Science Museum,they showed great interest in everything they saw.a.The first time b.For the first time c.At first d.Until
4.I don’t think you’ll be able to understand that_D_you are my age.a.even b.only when c.as if d.even when
5.Leave a basin of water outside in freezing weather_D_it will soon be covered with ice.a.or b.but c.as d.and
6.What he said is strange,_A_it is true.a.but and b.and but c.yet and d.and yet
7.Jack was very tired_B_he played tennis all afternoon.a.if b.as soon as c.because d.before
8.Though_A_he said was of little help to me,I thanked him all the same.a.what b.which c.that d.who
9.I often visited the British Museum_A_I was staying in London.a.while b.until c.during d.throughout
10.A__he finished his work,he left hurriedly.a.As soon as b.As if c.Unless d.In order that
11.You’ll surely make progress_C_you work with a strong will.a.unless b.until c.as long as d.as well as
12._C_,I am sure that he is honest.a.No matter people say b.What people say c.Whatever people say d.It doesn’t matter people say
13.It won’t be long_B_you regret what you’ve done.a.after b.before c.since d.then
14.D__the letter,tears kept coming to her eyes.a.To read b.Reading c.She was reading d.While she was reading
15.I’ll leave him a note__Ahe’ll know where we are.a.so that b.so as c.in order d.for
16.It is often said that an American starts a speech with a joke,_C_a Japanese has an apology to make.a.which b.what c.while d.that
17._C_the rain has stopped,let’s start again.a.For b.Because c.Now that d.That
18.Mr Smith is a warm-hearted person.He helps me_A_I ask him to.a.whatever b,whenever c.only d.however
19.He took all_A_was here and left nothing.a.what b.which c.that d.after
20.It’s almost three years_C_I last saw her.a.since b.when c.that d.after
21.He started early__Ahe could get there before nine.a.in order that b.bacause c.so as to d.in order to
22._D_what may happen,I won’t change my mind.a.Even if b.Although c.Perhaps d.No matter
23.Time passed quickly and three weeks went by_A_we knew it.a.before b.after c.when d.till
24.He won’t believe it_A_he sees it with his own eyes.a.before b.after c.until d.as soon as
25.They waited_B_it was dark before leaving as they didn’t want anyone to see them leave.a.since b.until c.unless d.so
26._D_there is a will,there is a way.a.when b.That c.While d.Where
27.I knew John_B_I knew you.a.before long b.long before c.long ago d.after long
28.You can use the bike_B_You return it before Friday.a.unless that b.on condition that c.whenever d.as if
29.The question was_C_difficult that nobody could answer__.a.very;them b.very;it c.so;them d.so;it
30.Mike is_B_boy that we all like him.a.a good so b.so good a c.a such good d.such good a