Mr. Green works in office, but his sister works a farm.
A．a, in B．an, in C．an, on
is really hard them to climb Mount Huang.
| A．This, to. | B．It, for |
| C．This, for | D．It, to |
You won't pass your exams________ you work harder.
| A．when | B．if | C．unless | D．after |
You look pale today , I think the red T-shirt ___good ____you
| A．will look , in | B．look , on |
| C．will look , on | D．look , in . |
Boys and girls , more attention should be paid to ____the word correctly
| A．pronouce | B．be pronounced |
| C．pronoucing | D．pronouced |
.I am not sure ____ . Which of the following is not right?
| A．which club shall I join next term |
| B．how much sleep we need every day |
| C．what life would be like without hobbies |
| D．why he always feels tired in class |