My father was mending his car while my mother .
—________have you been married?—For twenty years.
—We’ll visit the Summer Palace________there is a heavy rain tomorrow.—OK!Boating on the lake must be great fun.
—There are so many problems.I’m so afraid.—You should try to________your shyness first.You’re not a child any more.
—What are they doing at the bus stop?—They are waiting for a bus________.
—What happened________him?—He hurt himself.