—Who’s in the room? — Mr. Brown is. He         a letter now. 
#37199
A
writes
B
write
C
writing
D
is writing.
推荐题目
A boy with two dogs ______when the earthquake rocked the city.
#39795
A
were sleeping
B
is asleep
C
was sleeping
D
are asleep
 I__________ Lucy at the bank the other day.
#40180
A
see
B
saw
C
was seen
D
seeing
----      your son        a computer?------No.He        one this summer vacation.
#36548
A
Has; bought; will buy
B
Did; buy; bought
C
Does; buy; bought
D
Does; buy; will buy