Nobody can learn English well __________he works hard on it.
| A．if | B．unless |
| C．when | D．but |
There was a big fire in the street last night, but the firemen _______ within twenty minutes.
| A．took it out | B．brought it out | C．worked it out | D．put it out |
____________belate,oryouwillmisstheexcitingbeginningofthespeech.
| A．Mustn’t | B．Can’t | C．Don’t | D．Shouldn’t |
--- I won’t go to the party tonight.
--- ______ you told me you would. What’s the matter?
| A．So | B．Or | C．Because | D．But |
--- You look nice in the dress!.
--- Thank you. It ______ me seven hundred yuan. I like its design.
| A．paid | B．spent | C．took | D．cost |
We didn’t arrive at school on time yesterday morning ________ the heavy snow.
| A．because | B．because of | C．so | D．so that |