—________have you lived in Suqian,Jane?—For about 16 years.
That boy looks very unhappy.Let’s________.
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.