challengeC ．A ． knowledgeB．development
difficulty．D
（已提交）C.D. 答题：A.B.
D参考答案：
问题解析：
)单选题5.(People use more words when they
______ with each other.
associatecommunicateA ． completeB．C ．cquireD．
（已提交）B.C.D. 答题：A.
B参考答案：
a
问题解析：
How are you doing, Frank? )6.(单选题― _______________―
D. ItB. How do you do?C. Great, thanks!A. How
are you doing?s'
nice meeting you!
（已提交）B.A.答题：C.D.
C参考答案：
问题解析：
Hi, it is nice to meet you!单选题7.( )―
―______________________
D.A. Nice to meet you, too.B. Fine, thank you!C. Good to you.
How are you?
..........
...
（已提交）D. A.B.C.答题：
A参考答案：
问题解析：
Hello, I― 8.(单选题 )m Robin.'
_______________ My name is Anna.―
D.C. You can call me Bob.A. How are you?B. How
do you do?
Fine, thanks.
（已提交）C.D. 答题：A.B.
B参考答案：
