--Recently, the word “给力” in Chinese is very popular, but I wonder what it means.--I think it means “ ”.A. powerful B. fantastic C. uncertain
His sister usually helps him________his homework.
—Your tea smells great!—It’s from India.Would you like________?
The World Health Organization has given some advice on________to protect us from being infected(感染)with H7N9.
—What do you usually help your mother________?—I often do the dishes.
It took him one hour________his homework.