相关题目
If you have any problems during your study here, please do not _______ to call me for help.
This is not what we asked you to do. You can not get more pay for the _______ work.
When the airplane takes off, the passengers are told to _______ their seat belts.
Water and air are _______ to human beings. We can not live without them.
Please _______ me for my rudeness. I really do not know the custom here.
When you study in the United States, usually you have to buy your own health _______.
In the class the teacher asked the students to _______ their bad habits.
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.
This morning in the class, our teacher lost his _______ at last because he could not stand any more.
