There is no doubt _____ China has made rapid progress in space exploration.
| A． whether | B． that | C． which | D． who |
------You are lucky that she is very thoughtful and devoted to you.
------ In fact, I don’t want to ____ her with my problems all the time.
| A．hire | B．strike | C．bear | D．bother |
I had to ______ because someone else wanted to use the phone.
| A．hang on | B．keep up | C．hang up | D．ring up |
According to an old proverb，a red sky at night often fine weather the next day．
| A．indicates | B．impresses | C．obtains | D．occurs |
Most of ______ we call geniuses are successful only because they have made extraordinary efforts.
| A．which | B．that | C．whom | D．what |
-------May I borrow your paper?
------ ______.
| A．By all means | B．Never mind | C．You are welcome | D．Don’t mention it |