It’s sometimes too difficult to understand the voices of American film.
As students,we should try________hard from now on.
—________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________.