Earth is believed ______ by an object the size of Mars at some point in the distant past before itssurface cooled.
| A．to be hit | B．to have hit |
| C．to have been hit | D．to hit |
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23. In face of failure, it is the most important to keep up good state of mind.
| A．a; 不填 | B．不填; a | C．the; 不填 | D．不填; the |
22. —— Can I get the house cheaper?
—— Sorry, it’s ______ my power to sell it any cheaper.
| A．without | B．except | C．beyond | D．out |
21. The village is far away from here indeed. It’s ______ walk.
| A．a four hour | B．a four hour’s | C．a four-hours | D．a four hours’ |
35. —— What about the rent?
——_________.You can pay weekly or monthly．
| A．Not at all | B．that’s all right | C．You can’t miss it | D．It’s up to you |
34. —— OK, $ 500, but that is my last offer.
—— _______.相关知识点
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