Nobody taught _______singing.She just learned it by__________.

We are working under the command of the manager thatno _______ be spared to make the party a success.

. In salad bars the waiter does not bring you salad. You have to____ yourself, usually to as much as you want.

Another advantage is that it’s so slim that it won’t too much space in your bag.

Have you heard that Jones, along with her parents, to Hainan for the winter vacation?— Really? No wonder I haven’t seen her these days.