It is difficult for the students______ the homework on weekends.
#49154
A
finish
B
to finish
C
finishing
D
finished
推荐题目
--What did the teacher say just now?--- The teacher told us _______ our hands before ______ the questions.
#49442
A
to rise; answered
B
rise; answering
C
to raise; answering
D
raise; answered
Three trees can do the job of 15air-conditioners _________ almost all day.
#48595
A
run
B
are running
C
ran
D
running
