When it comes to reducing stress, enough sleep and physical exercise can help, .
A．so does proper nutrition B．so proper nutrition does
C．so proper nutrition can D．so can proper nutrition
—Why did you leave without a word of warning to John?
—But what otherwise? He never listens to me.
A．could I have done B．would I do
C．must I have done D．should I do
I think your health will soon if you do regular exercise.
A．give up B．take up C．pick up D．get up
—Excuse me, but could you please turn the radio down?
—Sorry, I you could hear it.
A．don’t realize B．haven’t realized C．didn’t realize D．hadn’t realized
With some technical problems to be solved, it may be a while the system is put into use.
A．when B．after C．since D．before
Only when you stay with local people for a period of time will you have better understanding of life here.
A．a; 不填 B．the; a C．不填; the D．the; the
