Clearly there is much to be desired _____ it comes to the quality of teachers and their teaching methods.
| A．when | B．since | C．until | D．although |
In case it thunders, we’d better _____________ the electricity at once and turn off the TV.
| A．cut in | B．cut off | C．cut down | D．cut away |
He is such a _____________ teacher that he knows what his students need.
| A．practical | B．humorous | C．mild | D．typical |
Captain James Cook took _____________ of the islands in 1769 and from that time British people started to settle in New Zealand.
| A．notice | B．hold | C．possession | D．care |
If we go on using energy so wastefully, __________ are that our oil wells will be dried up before new energy sources can be found to replace oil.
| A．chances | B．opportunities | C．questions | D．problems |
— They are quiet, aren’t they?
— Yes. They are accustomed ______ at meals.
| A．to talk | B．to not talk | C．to talking | D．to not talking |