The pregnant woman always sits in the nonsmoking area of restaurants to reduce her exposure ________ smoke.
| A．to | B．with | C．in | D．from |
What terrible weather! It_____heavily for as long as eight hours.
| A．snows | B．snowed | C．is snowing | D．has been snowing |
His mother always keeps telling him to ______ his table manners.
| A．care | B．observe | C．mind | D．notice |
This is the very dictionary____which Mr. Smith came here the other day.
| A．by | B．for | C．in | D．on |
--How much salt did you put in the soup?
--- I’m sorry to say, ____. I forgot.
| A．none | B．no one | C．nothing | D．no |
I really can’t imagine such a beautiful girl____be so rude.
| A．need | B．may | C．shall | D．should |