All the students in this school are required to ________ at least two lectures on how to study every month.
These machines can help recycle the waste which would ______be thrown away.
As a serious candidate, you should try your best to make a good ______ on everyone you meet.
All of ______ sudden, a terrible animal appeared and all the people held still in _____ terror..
— How do you find the new book by JK Rowling?—__________. I guess she is out of her talent.
French _________ English _________ having gender(性的区别) for all nouns.