Please turn down the music, _________our neighbors next door will be disturbed.
A．and B．or C．but D．so
In summer, food will go bad if_________in room temperature.
A．leaving B．left C．being left D．having left
．QQ, _________you can chat with your friends, makes communication easy.
A．why B．which C．that D．where
_________fit, we ought to learn more about our body and be careful with what we eat.
A．Keeping B．To keep C．Having kept. D．To have kept
Of all the girls, Jane spent_________time and made_________mistakes.
A. less; fewer B. much; many C. the least; the fewest D. more; most
How_________I help them to understand when they won’t listen to me?
A．can B．would C．may D．must
