He is only too ready to help others, seldom, ______, refusing them when they turn to him.
| A．if never | B．if ever | C．if not | D．if any |
The number of the employees has grown from 1000 to 1200.This means it has increased ___20 percent.
| A．by | B．at | C．to | D．with |
She was wandering what to do __ a policeman came and asked if he could help.
| A．while | B．as | C．after | D．when |
It was with great joy ___ he received the news that his best friend woud come to Beijing.
| A．because | B．which | C．since | D．that |
So far, several ships have been reported missing ___ the coast of Bermude Island.
| A．off | B．along | C．on | D．around |
--They all agree ___George.Has the project been passed?
--Who ___ George can make the final decision?
| A．except, except | B．except, besides | C．but, but | D．besides, but |