We may meet all kinds of difficulties in the future, but we should be confident enough to______ any challenge.

All the students ________ laughter when David walked into the classroom like Donald Duck.

That’s a nice hair clip. Could you tell me —I made it with my sister’s help.

Lily Lucy may go with you because one of them must stay at home.

He doesn’t like playing cards, because he thinks playing cards is a waste time.