相关题目
As a teacher, you should not （ ）the students from asking questions in class.
When traveling alone in the mountains, you’d better take a （ ） with you in case you get lost.
It is not （ ）for me to return all the books to the library now because I still need some of them for my research.
This morning in the class, our teacher lost his （ ）at last because he could not stand any more.
Several loudspeakers are （ ）from the ceiling and we can hear the speaker very clearly.
Without a proper education, people could （ ）all kinds of crimes.
I have not heard anything from him since his _______.
Both sugar and salt can ______in water.
Students with （ ）problems may apply for student loans.
Sometimes it is very difficult to （ ）some of the English words. Even the native speaker can not help.
