There’s a lot to do. We can’t __________ to waste any time.

Mr. Zhang ________ to school on the school bus every day．

.在字母表中,______和______ 两个字母可以单独成词。

John, as well as his classmate, ______excited ______so many stars yesterday.

Jimmy is _________one-year-old boy and he has_________8-year-old sister.