Please ___________ the machine before you start it. Maybe it’s difficult for you to make it move.–OK. I’ll try my best.

If I the driving test, I will have an another try.

Do you know that old woman— Yes, she is Mrs. Green. And she ____ leaves her house because she can’t walk far.

Everyone in our class works as hard as theycan ________ to enter a good college.

a football fan, so he is keen ________ football matches all day.