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1、 We should try to save those (濒危动物), or we will never see them again.
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2、 Do the animals live in the zoo or (在野外)? I have never seen them before.
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3、 They (typical) go hiking on weekends if the weather is fine.
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4、 The old toys (throw) away by us next Sunday.
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5、 She (force) to take the exam again because she failed it.
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6、 A lot of new magazines (publish) here every month.
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7、 The boss (direct) told us about the new rule this morning.
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8、 She (rare) talks with strangers.
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9、 A young (blog) shares daily life stories on the Internet every day.
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10、 These (law) have solved hundreds of legal cases since 2020.
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11、 Some government (official) are visiting our community to ask for advice now.
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12、 Our teacher often tells us that crossing the road carelessly is (danger).
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13、"Where(be) you this time yesterday?"
"I(be) at home. I (read) a book then."
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14、 I don't know when the manager (return), but when he (come) back, I(let) you know.
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15、 It (rain) harder now. It (rain) quite often in summer.
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16、 Look! Someone (lie) on the floor.
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17、 You (be) late if you (not hurry).
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18、 It (get) dark. What about (go) home at once?
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19、 I(not go) to the cinema because I(see) the film before.
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20、 the street lights usually (turn) on at seven in summer evening?