---What do you think of my answer to the question?----Sorry, What’s that? I _______ about something else.
#39461
A
am thinking
B
was thinking
C
had thought
D
thought
推荐题目
While Mary ___ a letter, the children were playing outside.
#39841
A
wrote
B
writes
C
is writing
D
was writing
–What are you going to do this Sunday? –I _____yet. 
#40265
A
won’t decide
B
didn’t decide
C
haven’t decided
D
don’t decide
------- _______ 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