While he            the bus, he             a book.
#44868
A
was waiting for, read
B
waited for, was reading
C
was waiting for, was reading
D
waited for, read
推荐题目
After Nanjing Youth Olympic Games Park ________, it will become a new tourist attraction.
#44624
A
completed
B
has completed
C
is completed
D
was completed
The basket ____eggs.
#45039
A
filled
B
full with
C
is full of
D
is filled