You will achieve nothing _____ you work hard
| A．unless | B．when | C．if | D．that |
If you don’t understand the word, you can ________ in a dictionary.
| A．look for it | B．look at it |
| C．look it up | D．look after it |
My little brother caught a cold, ________ he didn’t wear warm clothes yesterday.
| A．so | B．because | C．but | D．and |
— Max is really _______ honest boy.
— Yes. That’s why he is _______ most popular student in his class.
| A．an; a | B．a; the | C．an; the | D．the; / |
I look forward to _____with you again.
| A．work | B．to work | C．working | D．works |
You’ll certainly feel lonely ______ you communicate with your friends sometimes.
| A．unless | B．though | C．if | D．when |