急需新概念英语第二册练习册第43课答案!注意是练习册,不是书后的!

Lesson 43
A
1.Can I 2.Could we 3.aren't able to 4.has been able to
5.can't 6.Can I 7.were able to 8.were finally able to
B
1.I wasn't able to speak to him on the phone last night.
2.I will be able to see you at 10.30 tomorrow.
3.The baby is already able to stand up.
4,We aren't able to accept your kind invitation to dinner tomorrow.
5.They weren't able to tell me when the next plane would arrive.
6.He is not able to see you today bcause he is extremely busy.
C
2.i 3.g 4.h 5.b 7.j 8.c 9.d 10.e
1.At last 2.at present 3.at times
4.At first 5.at least 6.at once
D (A possible answer)
While I was swimming,the sea became very rough and I tried to swim to shore.The harder I swam,the more I was carried out to sea.I was very frightened because I didn't know how to get to the shore.
Sunddenly a strong hand took my arm and pulled me into the shore.The stranger swam away and I never saw his face.I was sorry that I wasn't able to thank him or her,the person who saved my life.