1, I can’t help _____(look) at these new products.
2) It usually takes me half an hour ____( go ) to school by bus.
3) Would you mind ____ ( open ) the door ?
4) You should give up ____ ( smoke ) or you will die of cancer.
5, We regret ____ ( inform ) you that we cannot approve your .
6) I did not know how ____ (operate ) that machine.
7) I do not have enough money ____ ( buy ) this dictionary.
8) Peter went to France in order to ____ ( study ) French.
14) Robbins Started ____ ( jog ) a years ago.
15) The authority had several volunteers ____( help ) the victims of the fire.
16) I was made ____ ( study ) when I was at school.
17) You had better ____ ( work ) harder because the examination is coming.
18) I suggest ____ ( do ) some more mathematic puzzles.
19) You had better ____ ( go ) to work on time or you will be sacked.
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