- Can you go to row a boat with us this afternoon?
- I'm afraid not. I_______ look after my little sister because my mother is out.
| A．can | B．may | C．would | D．have to |
相关试题
He’s never been to the Great Wall, _______?
| A．is he | B．isn’t he | C．hasn’t he | D．has he |
----There can be no life on the earth without water.
----That’s right. Water _____ everywhere.
| A．needs | B．is needing | C．is needed | D．needed |
I hate people ___________ talk much but do little.
| A．who | B．who’s | C．whose | D．whom |
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