When the students heard the alarm, they all hurried to they thought was an emergency exit door．
| A．what | B．which | C．where | D．who |
Only after they had carried out over ten experiments ______ the decision.
| A．they reached | B．they reach | C．did they reach | D．do they reach |
It’s reported that the price of meat this month is ______ that of last month.
| A．half as lower as | B．half lower than |
| C．lower half than | D．as half low as |
Thank you for sending us ______ vegetables. You have done us ______ great help.
| A．不填; the | B．the; a | C．不填; 不填 | D．the; 不填 |
They tried to find a table for two. But they were all ______.
| A．given away | B．kept away | C．taken up | D．used up |
Why don’t you bring ______ to his attention that you are too ill to go on working?
| A．one | B．it | C．that | D．this |