The teacher with his son. [ ]A. swimming B.

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The teacher          with his son.         [     ]
A. swimming
B. are swimming
C. is playing tennis
D. swims

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举一反三

It"s 12 o"clock. Mary"s family ______ their lunch. [ ]

A. eat
B. are eating
C. eating
D. to eat

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Listen! Who ________?         [     ]
A. singing
B. are singing
C. sing
D. is singing

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—What _____ you ______?
—I"m reading a book.
A. do; do
B. are; doing
C. are; do
D. do; doing

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Be quiet, please. The students _______ a class now. [ ]

A. have
B. had
C. are having
D. were having

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用所给单词的适当形式填空l. In the         (two)  picture, I"m         (play)tennis with my brother.
2. Look! My cousin          (swim) at the pool.
3. Miss Black often         (dance) in the park.
4. Thanks for         (teach) us so well.
5. Let"s         (write) him an e-mail.

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