You’ll fail in the English test ________ you work hard at it.
| A．because | B．until |
| C．unless | D．if |
Several ________ students came to the meeting.
| A．thousand | B．thousands | C．thousand of | D．thousands of |
This book is ________for a six-year-old child to read.
| A．enough easy | B．enough easily | C．easy enough | D．easily enough |
The window was broken. Try to ________who has broken it.
| A．find | B．look | C．find out | D．look for |
Don’t forget to turn ________the lights when you leave the office.
| A．on | B．off | C．up | D．in |
She’s feeling ________ tired.
| A．a bit | B．a bit of | C．lots of | D．a few |