— The professor gave a really good speech. — I suggest you ______ him some specific questions about his work experience.
Recycling is one way to protect the environment;reusing is________.
At our factory there are a few machines similar to ________ described in this magazine.
It’s an eitheror situation -we can buy a new car this year or we can go on holiday but we can’t do________.
My mom suggests that we________eat out for a change this weekend.
I should not have laughed if I________ you were serious.