We should not only be confident ____ ourselves, but also think things ____ before making decisions.
I was doing my homework ______ my mother was cooking in the kitchen.
I was cleaning my bedroom. ______ a mouse came out.
There were many apples ______ the tree. A monkey was picking them ______ it.
—Do you know about the play Hamlet(《哈姆雷特》)? —Oh, it’s one of Shakespeare’s ______ plays.
I’ll take my sister to the museum ______ it doesn’t rain this afternoon.