—What are Mr and Mrs Black doing?—They_____.[ ]A. eat B. eating C. t

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—What are Mr and Mrs Black doing?
—They_____.[     ]
A. eat
B. eating
C. to eat
D. are eating

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举一反三

We ____ to Nanjing next month.         [     ]
A. will flying
B. are flying
C. fly

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―How long are you ______ in New York?
―Just for three days. [ ]
A. staying
B. stay
C. stayed
D. stays

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Jim is ____ to go _____.[     ]
A. plans, skateboard
B. planned, skateboarding
C. planning, skateboarding
D. planning, skateboard

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Mary is _____ her brother. What about _____? [     ]
A. babysit, you
B. babysitting, your
C. babysiting, you
D. babysitting, you

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—Jim, can you help me to wash the dishes?
—Sorry, Dad, I _____  to the shop.    [     ]
A. go
B. went
C. am going
D. have been

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