It’s more than 8 years since I         a teacher.
#39801
A
become
B
has become
C
became
D
becomes
推荐题目
There __________heavy rain tomorrow. 
#39297
A
is
B
have
C
will be
D
will have
------- _______ you _______ the book ______ to the library yet. ------ Yes. I have.
#41873
A
Have ,returned,/
B
Have, returned, back
C
Did return ,/
D
Did, return,back