The theory he sticks to ______ to be of no use in our studies.
| A．proves | B．prove |
| C．proving | D．be proved |
--_____ of the population of the city _____workers?
--About 60 percent.
| A．What; is | B．What; are | C．How much; is | D．How much; are |
Although he is considered a great writer, _____.
| A．his works is not widely read |
| B．but his works are not widely read |
| C．however his works are not widely read |
| D．yet his works are not widely read |
He advised the fanners to choose the best seed-heads,____ that had the best colour.
| A．the one | B．the ones | C．one | D．ones |
Forgive him, please. I don't think he broke your mirror____.
| A．with care | B．on purpose | C．for fun | D．with aim |
The weather in Britain is ____too cold in winter___too hot in summer.
| A．either; or | B．both; and | C．neither; nor | D．or; and |