Bob promises to join in the football match ______ he has to help his parents on the farm.
A. if B. as C. unless
相关试题
–Can I park my car here?
–No, look at the sign.
Which sign does the second speaker refer to(指)?
–Who’s _________ young man with long hair?
–He’s a friend of mine.
| A．a | B．the | C．an | D．his |
Mum, ______ my friends，Dale and Helen.
| A．this is | B．they is |
| C．he and she | D．these are |
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