—Sorry, _______ is not allowed here.

       the classroom clean        our duty.

                            some young people's hobby.

They went to see a film                      TV.

I'm tired. I               going to bed.

I will return the book to you as soon as I               it.

    Debbie and Simon have part-time jobs at a travel company. One day,        well-dressed lady entered the office and went to Debbie        help. Debbie gave her a        (cheer) greeting at once. But there        (be) something wrong with Simon, because customers preferred to choose Debbie instead of        (choose) him and he even didn't get a chance        (speak).

    Then Mr Yang taught Simon to improve his body language and try to give people a good        (impress). So Simon decided to improve his body language.        (improve) body language was not so hard. He sat up straight        tried smiling at people. Later, a beautiful girl entered, walked over to Simon, and then left with a smile. Mr Yang came over but finally        (find) that the girl was Simon's sister.

              is also very important for businessmen.

He               straight and listened carefully.

Last week, many things               at our school.

Lily                             the little boy and smiled at him.

Some people like to                      when they are thinking.

Anna                                    her classmates.

Kate is not here. She's listening to the concert                     .

Here's some advice on how to choose a right job and                     .

You                      stay up late.

                     him a hand?

I'd like to                      the concert will begin at eight o'clock.

If you have any trouble, you can               him              .

I               you        keep silent.

Don't chat               your homework.

If you                             get a good job, you must catch it.

    Many people have dogs at home as pets. If a dog is happy, then he may want to meet you or play with you. If he doesn't feel happy, then he would rather stay alone. But dogs can't talk. How can you tell how your dog is feeling? By his body language.

    If your dog's head and back are lowered, his ears are down and his eyes are narrowed, and his tail is between his legs, then he is fearful. You may touch him gently to comfort him. If your dog's ears are up, his eyes are bright, and he wags his tail rapidly (快速地), he is very happy. He may also hold his mouth open more or even pant (气喘) mildly. Then you can go and play with him freely. If he closes his mouth and looks serious as you get closer, then he has changed his mind. It is better to leave him alone until he comes to you. Remember, we are talking about dogs that you know. Be sure a parent is around to allow you to get close to the dog. Get away from strange dogs even if they seem friendly.

    The most important clue (线索) is the mouth. If the dog's mouth is closed, then he is most likely to be not relaxed or happy, and he does not want you to touch or play with him right now.