(单选题)2: According to the air traffic rules, you ____ switch off your mobile phone before boarding. A: may B: can C: would D: should ...

(单选题)15: — It’s the office! So you ____ know eating is not allowed here.　 — Oh, sorry. A: must B: will C: may D: need ...

(单选题)9: You had better go home and feed the cat ____ it decides to bite the furniture. A: until B: before C: after D: when ...

(单选题)3: But for the leadership of our Party, we ____. A: shouldn't succeeded B: will not succeed C: couldn't have succeeded D: shouldn't have succeeded ...

(单选题)22: The bridge is 1000 meters ____ length. A: with B: in C: at D: on ...

(单选题)16: It has long been known that there is an electric field ____. A: inside the earth B: inside earth C: inside an earth D: on earth ...

(单选题)10: I wish that you ____ such a bad headache because I’m sure that you would have enjoyed the concert. A: hadn't B: didn't have had C: hadn't had D: haven't had ...

(单选题)4: I remember ____ this used to be a quite village. A: when B: how C: where D: what ...

(单选题)23: ____ the end of last term, every student in the school, I think, has taken at least five maths tests. A: By B: Since C: From D: In ...

(单选题)17: Can you tell me ____ the railway station? A: how can I get to B: how I can get to C: where I can get to D: where can I get to ...