21春学期《大学英语（三）》在线作业 红字部分为答案！
一、单选题
1.He()in the laboratory the whole morning. A.has been working B.is working C.was working D.has worked
2.I have lived here()1997. A.for B.since C.at D.after
3.My car was being()when it was stolen. A.to repair B.repair C.repairing D.repaired
4.We have our house()every week by a cleaner. A.clean B.cleaned C.cleaning D.to clean
5.– What do you find difficult in learning English? – (). A.Listening and speaking
B.Don't be afraid of difficulties C.Learning English is useful D.Don't be disappointed
6.You look(). What()you()? A.tire, did…do
B.tiring, have…done C.tired, do…do
D.tired, have…been doing
7.– May I help you, madam? – (). A.Sorry, I have no idea B.Yes, I know what to buy C.You'd better give me a hand
D.Yes, I'd like 2 kilos of oranges
8.– Wait here and I'll get my car and go there together. –A.I'm sorry to have kept you waiting B.Your sports car is fabulous
(). C.I'm afraid I won't wait very long
D.Why bother? It's within walking distance
9.– Are you feeling better today, Mrs. Silver? – (). A.Don't worry about me
B.Just stay in bed and have a good rest C.There must be something wrong
D.Yes, thanks doctor. But I still feel dizzy
10.– I wonder if you could help me. – (). A.I could B.Yes, I do
C.No, not at all D.Of course
11.He asked me()English culture. A.about B.of C.for D.on
12.He goes to school by bike, and the()takes half an hour. A.travel B.journey C.voyage D.trip
13.In addition to rice, we need to()our diet with fish, meat and vegetable. A.supplement B.replace C.add D.eat
14.– David, you've been losing your temper over nothing lately. – (). A.I haven’t been getting much sleep either
B.You’d better not push yourself too hard, or you’ll get sick C.I’m sorry. I shouldn’t have blown up like that D.You’d better do exercises regularly
15.– The lecture given by professor Smith was really interesting. – (). A.I couldn't agree with you more B.I'm going to listen to it C.It sounds reasonable D.It didn't last too long
16.– Excuse me, how far is the airport from here? – (). A.You can take a taxi
B.It's about thirty miles C.I'll fly to Sidney
D.It's only six hundred dollars
17.I haven't read()book, but I read half of it. At least I know something about the subject now. A.whole
B.the whole C.all of D.all
18.– I heard your motorcar was stolen. – (). A.I'm sorry to hear that B.It doesn't matter
C.Everybody knew it except you D.Mine wasn't but Bill's was
19.The public transport system in many cities in the world()by the local authority. A.is still ran B.are still run C.are still ran D.is still run
20.– I wonder if Tim could control the situation. – (). A.It's none of your business B.You'll get involved in it
C.Tim must be thinking about it
D.Well, if he can't control it, no one can
21.– I have an appointment with Dr. Johnson. – (). A.The appointment is put off B.You look sick and weak
C.Please wait for a minute. He is busy now D.Tell me your ID number
22.Bush's farm()is said to be at bottom of the state of Texas in north America. A.street B.road C.lane D.avenue
23.What()all this morning? A.are you being done B.have you been doing C.have you been done D.are you doing
24.All the team members tried their best. We lost the game,()_. A.however B.although C.but
【南开大学】21春学期《大学英语(三)》在线作业【答案57023】
