There ____________ a lot of water in the bottle. A. areB. isC. be
当你的同学拿着3本书，问你这是多少本书时，你的回答应是：A. Four books .B. Three books .
当你向你的同学借橡皮时，你的同学借给你之后，你要对他说一声：A. Thanks!B. I don’t know.
从B栏中选出与A栏对应的答句，并将标号写在相应的问句前的括号里。
____ are standing.A. she B.It C.They.
What ___ they playing ?A. are B. am C. is
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