When first____ to the market, these products enjoyed great success.
| A．introducing | B．introduced | C．introduce | D．being introduced |
At the meeting they discussed three different _______ to the study of mathematics.
| A．approaches | B．means | C．methods | D．ways |
The famous scientist grow up________ he was born and in 1930 he came to Shanghai.
| A．when | B．in which | C．where | D．wherever |
—Why did you go back to the shop?
—I left my friend_______ there.
| A．waiting | B．to wait | C．wait | D．waits |
We firmly believe that war never settles anything.It only_____violence.
| A．runs into | B．comes from | C．leads to | D．begins with |
The famous singer and dancer____ our party this evening.
| A．are going to attend | B．was to attend |
| C．were to attend | D．is going to attend |