Professor Williams keeps telling his students that the future       to the well- educated.

Great changes have taken place in China since the People’s Republic of China     in 1949．

If the weather had been better，we could have had a picnic．But it         all day．

－Have you known Dr Jackson for a long time?－Yes，since she         the Chinese Society．

It        long before we        the result of the experiment．

Months ago we sailed ten thousand miles across this open sea，which         the Pacific，and we met no storm．

My little son used to drink a lot of fruit juice but these days he        mineral water．

Ladies and gentlemen，please fasten your seat belts．The plane       ．

----- I’ ll give you a ring about eight.------Could you phone a bit later? I ______ dinner then.

His mother looked very tired，for she _____ the house herself all day.

He ________ in American for five years, and now he works in Shanghai.

---- What’s that noise?       ---- Oh, I forgot to tell you. The new machine ______.

The song writer and music composer ________ to show up at the press conference next week.

Cathy is taking notes of the grammatical rules in class at Sunshine School, where she ______ English for a year. 

Are you suggesting that I _____ too old for the job?

—Does John serve in the army?—No, but he________in the army for 8 years.

I have to go to school by bus because my bicycle _____.

In the near future, more advances in the robot technology _______ by scientists.

Miss. Gao _______ in the library for three years. But now she is a teacher.

To our relief, Xiaodan as well as the other children who ______ no parents ______ good care of in the welfare institute.