Although you may meet some difficuIties,you should never .
下列哪一组字母都能一笔完成_________.
— You look nice in this red skirt. —______.
— What do you think of the movie “Lost In Thailand”? —It’s ________. It makes everyone happy.
—____________________________?—It’s Wednesday.
Mr. Smith teaches ________ science. We all like ________classes very much.