你捡到一条短裤，你想问Gogo这是不是他的短裤，你会问Gogo：A.Whose shorts are these？B.Are these your shorts, Gogo?C.These are your shorts.
看图，选择相应的单词，填序号。
He can ____ Chinese. A. say B. tell C. speak
I ___ a robot. A. has B. have C. having
____ are hard-working. A. They B. Is C. Am
____ they helpful at home? A. Am B. Is C. Are
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