What are you going to do this afternoon—I’m not sure. I go swimming with my friend.
Would you like to go to aquarium with me tomorrow —Sorry . I there twice this year and don’t want to go there again.
To compete more effectively with others, it is time that university students _____to study abroad after graduation. [ ]
.—Why did you go swimming Tom—Because he was ill at home.
I haven’t decided when _____ a holiday yet.