______ the work is difficult, all the workers are keeping on working .

1. A.
   But
2. B.
   Although
3. C.
   And
4. D.
   So

用“who”或“that”填空

1. The man ________ is talking with my mother is my father .

2. That book is the one _______ I bought yesterday .

3. He is one of the workers ________ been saved in that accident .

4. They talked of the things and persons ________ they remembered in the factory .

5. All ______ can be done must be done .

【小题1】 My grandma always _______________ (relax) herself by walking in the garden.
【小题2】 To keep safe, everyone          (tell) to wear a seat belt in the car now.
【小题3】The telephone rang while the family ______________ (hang) the curtains.
【小题4】If we cut down the trees, floods ______________ (wash) our village away.
【小题5】The microphone is used to __________ (make) your voice sound louder.
【小题6】All the team members were seen _____________(train) hard when I passed the room.
【小题7】 Look! The twin _______________ (tie) the horses for us over there.
【小题8】The workers _____________ (ask) to work from morning till night in the old days.
【小题9】All the drivers must be careful when they are driving ___________ (prevent) the traffic accident happening.
【小题10】It’s said the police _______________ (control) all the thieves.