- How long did David work here? - For half a year, he didn't leave much_______on us.
The public transportation in this city is very convenient, where many buses run ______.
—Where have you been all day?—I _______ some former classmates and I couldn’t get back until it was dark.
—He is eager to try something he has never tried before. —Oh, I see. That’s _______ he’s different from others.
As your teacher, I could not have you ______ away with cheating in the exam.
Going abroad to study requires a big adjustment and it usually takes a while to .