1 . There is no obvious ________(突破) with cancer at present.

2 . This special bone structure is________(benefit) to kangaroos’ jumping ability. (所给词的适当形式填空)

3 . Eye contact is important because wrong contact may create a communication ______.

A．barrier

B．bar

C．blame

D．blank

4 . I can’t think of a ________ (good) idea although I know it isn’t the effective way. （所给词的适当形式填空）

5 . I think it’s important to have a ______________(平衡) between study and a social life, so I’m going to join a few clubs. (根据汉语提示单词拼写）

6 . Smoking is b________ in all public places.（根据首字母提示拼写单词）

7 . We all look up to her for her honesty and______(brave). (所给词的适当形式填空）

8 . His success was a long story, but ______ , he succeeded after many failures.

A．blindly

B．barely

C．broadly

D．briefly

9 . Each year, tens of thousands of people die because they are infected with antibiotic-resistant _______.

A．balconies

B．bandages

C．bacteria

D．banquets

10 . Don’t b________ to carry the bag for me. I can manage myself.