1 . _________ you try to do something beyond what you have already mastered, you will never grow.

A．Once

B．If

C．Because

D．Unless

2 . I failed the exam________ I did my best. But I’ll try harder next time.

A．when

B．until

C．though

D．because

3 . He could find the way home __________   he was only three years old.

A．though

B．because

C．where

D．if

4 . — Is tea ready?
— No, mother is ________ it ready now.

A．doing

B．cooking

C．burning

D．getting

5 . That girl in the movie is always full of hope for the future               she gets into difficulties many times.

A．if

B．but

C．because

D．although

6 . When travelling in South-east Asia, we should pay attention to using ________ hands to pass things to someone else.

A．all

B．each

C．both

D．either

7 . Shoppers were much more likely ________ (buy) a product advertised on TV by someone ______(try) it at the time. (所给词的适当形式填空)

8 . The workers will build a new road ________ the two villages.

A．from

B．among

C．at

D．between

9 . ________ Matthew didn’t win speech contest, he was still wearing a smile on his face.

A．Since

B．Unless

C．Because

D．Although

10 . The silver band from his wristwatch (手表) left a green ring over his wrist.

A．带子

B．乐队

C．范围

D．波段