We must promise ________ a low carbon life (低碳生活).
A.to have | B.having | C.had | D.have |
更新时间:2020-01-19 16:27:57
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【推荐1】He’d like _____ some English songs at the party.
A.singing | B.to singing | C.to sing | D.sings |
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【推荐2】We planned ________ the Beijing opera for an hour, but finally we stayed there for three hours.
A.watch | B.watches | C.watching | D.to watch |
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