Don’t turn off the computer before closing all programs, _________ you could have problems.
| A．or | B．and | C．but | D．so |
I will not speak unless _______.
| A．I will be asked to | B．asked | C．asked to | D．I am asked |
David has got everything ready, _________ it well.
| A．determined to do | B．to be determined to doing |
| C．determining doing | D．to determine to do |
By nine o’clock all the Olympic Torch bearers had reached the top of Mount Qomolangma, ______.
| A．above which appeared rare rainbow soon. |
| B．rare rainbow appeared soon above which |
| C．above which rare rainbow appeared soon |
| D．above which did rainbow appear soon |
Not only_______ the food in the restaurant, he______ to pay for it.
| A．he complained about; also did refuse |
| B．did he complain about; also refused |
| C．did he complain about; also did refuse |
| D．he complained about; also refused |
My mother doesn’t approve_______ abroad to study before graduation from high school.
| A．me to go | B．me to going | C．of me to go | D．of me going |