Look! David is helping his mother _______ the room.
#39685
A
is cleaning
B
cleaning
C
cleans
D
clean
推荐题目
When you are planting trees, the trees ________ straight in the hole.
#36844
A
must put
B
must be put
C
are putting
D
is put
—Where is your mother, Rita? --___________________.
#37826
A
She has been to Wu hu.
B
She’s going to the old people’s home
C
She’s gone to work
D
She’ll go shopping
