He didn’t make _____ clear when and where the meeting would be held.
| A．this | B．that | C．it | D．These |
Companies are struggling to find the right _____between supply and demand, but it is no easy work .
| A．methods | B．equal | C．balance | D．design |
________should the young _______illegal behavior.
| A．On no account, take in | B．Under no circumstances., take to |
| C．In no way, take after | D．With no means, take on |
A warm thought came to me I might use the pocket money to buy some flowers for my mother’s birthday．
| A．if | B．when | C．that | D．which |
It was too hard for the firefighters to get close to the burning building．All their attempts to rescue the people trapped were .
| A．in vain | B．in return | C．in place | D．in danger |
---Is that the country clinic you often refer to?
---Right，just the one you know my father used to work for 10 years
| A．that | B．which | C．where | D．as |