5. In our class, when the bell rang and the taacher closed his book, it was a or everyone to stand up.
| A．signal | B．chance | C．mark | D．measure |
相关试题
He keeps in the safe $3 million _____ of diamonds.
| A．value | B．worth | C．price | D．cost |
---- If he does you a favour, you should do him a favour.
---- I can’t agree more. ____.
| A．One good turn deserves another | B．Justice has long arms |
| C．One false move may lose the game | D．Lies have short legs |
The president of the university arrived yesterday, _____ the start of his short visit to China.
| A．marked | B．having marked | C．marking | D．to mark |
With more forests being destroyed, huge quantities of good earth _____ each year.
| A．is washing away | B．are being washed away |
C．are washing away |
D．is being washed away |
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