If you want to see a doctor, fix the date with him ahead of time. This is a common ___________ in the USA.A. habit B. law C. rule D. custom
I can’t stand the terrible noise ______ she is crying loudly.
It’s strange that she ____have failed to see her own shortcomings.
His teacher worried that the student spent too much time on the computer and not enough time _______.
The teacher talked in a very low voice_____make himself________, clearly.
________is well known that great changes have taken place in China recently.