The students were busy（)their lessons for the test.A.preparingB.preparing forC.to pre

After the class, students went out of the classroom one by one, but only Mary ___.A、le

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Who were the main customers of Sears and Wards business？A．Farmers.B．City people.C．Business

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The students are kept ______ cleaning the classroom.A、busy withB、busying withC、busy inD、

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The students have just completed their co

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The students have just 【completed 】their course.A

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Business people exercise their leadership in the

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From the report we can know the weather also influence_________. According to a report IQs of a group of students were very high when a very strong wind came but after the strong wind their IQ

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