Most students watch TV three ____ four times a week.
| A．and | B．but | C．or | D．However |
We can easily become unhappy_____ we work out our problems in our daily life.
| A．after | B．if | C．until | D．unless |
I’ll never forget the day_____ the great scientist came to our school and gave us a speech.
| A．that | B．which | C．when | D．where |
Last year was a hard time to my friend Jim, but he didn’t_____ hope.
| A．pick up | B．use up | C．put up | D．give up |
_____you do, don’t miss this exhibition, for it’s so hard for me to get the tickets.
| A．Whatever | B．However | C．Whenever | D．Whether |
This morning I had hardly got to my school when it_____ to rain.
| A．had begun | B．was beginning | C．began | D．begins |