--Must I clean the classroom now, Miss Wang?--No, you needn’t . It                by Bill. 
#41980
A
is cleaning
B
should be clean
C
was cleaned
D
has been cleaned
推荐题目
— Why _____ these cards ______ orange?— Because orange can cheer you up.
#40296
A
do; colour
B
are; colour
C
are; colouring
D
are; coloured
Don’t talk. Your brother _______.
#40133
A
sleeping
B
sleeps
C
sleep
D
is sleeping
---Is Lucy ______ her homework?--- No , she ________ .
#39513
A
do; doesn’t
B
does; isn’t
C
doing; is
D
doing; isn’t