During our stay in London, the guide book ___ a great help. We all had a wonderful time.
A. behaved B conducted C. served D. proved
相关试题
Today ________ number of people learning English in China ________ increasing rapidly.
| A．a; is | B．the; is | C．a; are | D．the; are |
______ is known to everybody is that the moon travels round the earth 
once every month.
| A．As | B．What | C．That | D．It |
. I don’t think I’ll need any money, but I’ll bring some ____.
| A．at last | B．in case | C．once again | D．in time |
It is that she helped others with their lessons after school.
| A．worth to be praised | B．worthy of being praised |
| C．worth praised | D．worthy to praise |
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