当你遇到很久没有见的好朋友，你应该说： A.Hello！ B. How are you?
The students couldn't help ______ when they heard the joke. A. to laughB. laugh C. laughing
Do you know ______ this word? A. what to spell B. how to spell C. to spell
Be quiet! The babies ________. A. sleepB. are sleepingC. slept
He asked me _____ I would like a cup of tea. A. that B. what C. If
找出下列英文单词所对应的中文意思。
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