The engineer ________ my father works is about 50 years old.
| A．to whom | B．on whom |
| C．with which | D．with whom |
—May I open the window to let in some fresh air?
—___________
| A．Come on | B．Take care | C．Go ahead! | D．Hold on! |
John is very ____ ——if he promises to do something he’ll do it .
| A．independent | B．confident | C．reliable | D．flexible |
This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.
| A．would | B．should | C．could | D．might |
I have reached a point in my lifeI am supposed to make decisions of my own.
| A．which | B．where | C．how | D．why |
I travel to the Binhai New Area by light railway every day, _____ do many businessmen who live in downtown Tianjin.
| A．as | B．which | C．when | D．though |