I'll go to the library as soon as I finish what I        .
#101936
A
was doing
B
am doing
C
have done
D
had been doing
推荐题目
He ___ speak on TV tonight.
#104489
A
was to
B
is to
C
will be
D
has
  If you _____ it , I will lend the book to you.
#104137
A
read
B
will read
C
have read
D
were reading