—What do you often do ________ classes to relax?—Listen to music or walk around the school.A.overB.throughC.between
____should be allowed to drive.
--I have failed the math test again. -- .You should work harder to pass it next time.
–Listen! Helen is singing in the next room. -- It be Helen. She has gone to Guangzhou.
Old people must .
--Can you hear me? --No, I can’t. Would you please speak .