课堂训练第2题详细解答过程和答案
1、met
2、to learn
3、has built
4、playing
5、are
课后作业第1题详细解答过程和答案
1、has been away;for
2、How long has
3、How soon
4、How does;get
5、for two years
课后作业第2题详细解答过程和答案
1
2
3
4
5
C
D
A
B
D
课后作业第3题详细解答过程和答案
1、How long have, learned
2、getting on with
3、It's very hard/difficult to
4、has been;since
5、Have;heard of/about
课后作业第4题详细解答过程和答案