Yesterday the geography teacher told us that the earth _______ around the sun.

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Yesterday the geography teacher told  us that the earth _______ around the sun.   [     ]
A. moved
B. moves
C. was moving
D. had moved

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举一反三

My mother ____hate drinking milk, but now she ____it.[     ]
A. used to used to
B. is used to; gets used to
C. used to; gets used to
D. is used to; used to

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基本语法。1. The streets here _____ (clean) by the cleaners every morning.
2. These flowers _____ (water) once every three days.
3. Many new things _____ (invent) by the scientists in the 20th century.
4. Yesterday a composition on protecting animals _____ ( write) by the students of our class.
5. The little girl had learned to play the piano _____ the age of five.

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Today Chinese      _by more  and more people around the world.[     ]
A. was spoken
B. is spoken
C. spoke
D. speak

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Nowadays, trains ________ more and more quickly.
A. traveled
B. travel
C. have traveled
D. are traveling

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Few students can understand the sentence until it        twice or three times.  [     ]
A. explains
B. is explained
C. will be explained
D. has explained

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