— How much of his speech do you think you have understood?—________. I wish I had worked harder.
He tired his best to find a proper roommate to _______.
—Sally, which dress do you like best?—Oh, I’ve tried several ones on, but _______ of them fit me well.
.Our country _______ rapidly in recent years, but it is still a _______ country.
_______ you eat this kind of fish, you’ll never forget its special taste.
Lots of volunteers _______ the people there _______ help when an earthquake happens.