Thanks to the policy,great changes _____ in Kaixian in recent years.
| A．took place | B．have taken place |
| C．happened | D．was happened |
相关试题
—Do you want tea or coffee?
— . I really don’t mind.
| A．Both | B．None | C．Either | D．Neither |
Both the parents and James London. They will come back soon.
| A．has been to | B．have been to | C．has gone to | D．have gone to |
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