The students _______ their homework carefully when the teacher walked into the classroom quietly.
#36148
A
do
B
did
C
are doing
D
were doing
推荐题目
Another thing that he ___very difficult was English grammar.
#40203
A
find
B
found
C
finding
D
to find
—Mum, when can I watch TV?  —As soon as your homework ______.
#40427
A
finish
B
finished
C
is finished
D
will be finished
Nina is clever but kind of lazy. If she ___harder next term, she ___ better grades. 
#39714
A
will work; gets
B
works; will get
C
will work; will get
D
works; gets
There is a big bank near my home and it  three years ago.
#39945
A
is built
B
are built
C
was built
D
is building