He usually helps me ______the housework.A. with B. to do C. do D. A、B and C
The Yellow River is the second in China.
Our city is becoming _________.
Li Xing’s illness(病) is very_____. You must take his illness ______.
—_____ do you water the flowers? —Twice a day.
I have only ten yuan with me, ___________ I can’t buy the expensive dictionary.