____ this may sound like a simple process, great care is needed．
| A．Since | B．Once | C．Although | D．Unless |
______ many other scientists, Albert Einstein enjoyed music besides scientific research work.
| A．In common with | B．In common | C．In the same | D．As |
The coin, which ______ the 1920, ______.
| A．dated from; belongs to mine | B．dates from; belongs to me |
| C．dates back to; made of gold | D．was dated from; was stolen |
Don’t make ______ of her. Can’t you see she is in ______?
| A．a fun; tears | B．fun; tears | C．fun; tear | D．a fun; tear |
The long-lasting meeting, filled with arguments and quarrels, ended in disorder, ______ no conclusion.
| A．reached | B．to reach | C．reaching | D．would reach |
Time should be made good use ______ out lessons well.
| A．of learning | B．to learn | C．to learning | D．of to learn |