Sitting over there is the only one of the students who they think ________ to speak at the opening ceremony. A.selected B.has selected C.has been selected D.have been selected
Great changes ________ in our town, and some factories ________ set up. A.have taken place;have been B.have taken place;have C.have been taken place;have been D.were taken place;were
Great changes ________ in my hometown, and a number of factories ________. A.were taken place; have been set up B.have taken place; have set up C.were taken place; were set up D.have taken place; have been set up
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