We should always keep the classroom ________ and tidy.
#55199
A
cleaning
B
cleaned
C
to clean
D
clean
推荐题目
You made many mistakes in your English exams. What will you ___them?
#54975
A
help with
B
do with
C
take with
D
bring with
 When did your father ___________ your mother? 
#55058
A
get married
B
marry with
C
marry
D
marry to