He made a great __________ to the success of the project.
.-What are you busy with? -The conference _______ in our city next week.
. You spent ¥300 on a pair of cotton gloves. Such a pair of cotton gloves _____ be worth so much.
. The child walked quietly to the bird. _______ into the forest when he was about to catch it.
We’d better hurry, for there is still a long _______ from home.
-What’s the matter with Tim? He looks upset. -Oh, his cell phone was left in a taxi accidentally, never _______ again.