The thief was noticed _____the office building by the back door on the screen.
#51161
A
enter
B
enter into
C
to enter
D
to enter into
推荐题目
It is difficult for the students______  the homework on weekends. 
#49154
A
finish
B
to finish
C
finishing
D
finished
-- The math problem _________ is not difficult. --- But after several tries , I have to give up _________ on it .
#49383
A
it’s , working
B
itself , to work
C
itself , working
D
its , to work
— It’s a fine day today. How about __________?  — Sounds great!
#51200
A
go hiking
B
go to hike
C
going hiking
D
to go to hike
 He used to       in the morning, but now he is used to       at night.
#50282
A
reading; read
B
read; read
C
reading; reading
D
read; reading
My mother told me _______ junk food at school.
#49946
A
to not eat
B
not to eat
C
don't eat
D
didn't