could
- I wonder if you could spare a little time to help with my English tonight?–_____. I have no extra work to do anyhow.
- John asked Tom ____ give him a lift to the office.
- No matter how hard he worked, ___ ____
- Not until the war was over _______ to school.
- People say your little brother has been admitted into QinghuaUniversity.—Yes. Never ________ he could achieve so much success.
- Peter could hardly see the words on the blackboard, ________?
- Sandy could do nothing but _________ to his teacher that he was wrong.
- The young man spent as much time as he ______ over his lessons.
- They peasants did what they____ the crops, but failed.
- Why did you leave without a word of warning to John? ——But what_____________otherwise? He never listens to me.