Jack is busy preparing for a party to celebrate his sister’s ____(twelve) birthday. He wants to give her a big surprise.

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44.In my hometown, the weather of this summer is much ____(hot) than that of last summer.
45.It’s a good habit to brush your____(牙齿) every day.
46.Thank you very much for____(邀请)me to your birthday party.
47.The man shows great ____(兴趣)in sports. He enjoys it very much.
48.The funny story makes him l____.
49.I just finished____(读) the story book.
50.We should do more exercise to keep____(健康).
51.— How many times should I take the medicine, doctor? — ____(两次) a day, please.
52.Audrey Hepburn was ____(活跃的) in the film industry for nearly 40 years.
53.Tom and Jerry r____ their bikes to Uncle Ma’s Farm twice a month.
54.The old town attracts____of foreign visitors every year.(hundred)
55.Mary comes from England and her old school is smaller than____.(our)
56.I think this problem is much ____ (easy) than that one.
57.It’s necessary for us ____ (understand) the importance of health care.

There are         teachersin our school,        of them are women teachers.

      trees were cut down.And many birds lost their home.

          visitors come to Xingyi during May Day holidays every year.

Some scientists think that it will take          of years to make robots do most work for humans.

—Which is the biggest number of the four?—.      ______________________.

Nowdays      of business letters are written in English.

There are      days in a week and Tuesday is          day of the week.

He has been swimming for       .