In 1720,Bach’s wife suddenly died, ______him with four children．

Because of my poor English I’m afraid I can’t make myself ____．

Dad is under a lot of pressure, so we have to ________ him.   

Millions of people watched that first moon landing on television, their hearts in their mouths, aware of how difficult and dangerous an adventure it was, and what risks had to be ____. 

. People used to accept a medieval world view in which human life was of little value ____ with the greatness of God.

The aim of the project is ____ patients to be more independent. 

His teacher worried that the student spent too much time on the computer and not enough time _______.

The path______the park is lined with many trees.

---How do you often spend your spare time? ---Personally speaking, there is nothing happier than reading a book, ____ a cup of tea.

------ What made you so sad?------ ______ my wallet.

The criminal ______ fire to a store and after a moment the whole store ______fire.

______ by the beautiful scenery, I forgot to go back home in time.

Not until Jane got off the bus did she find her wallet______.

He got 97 points, ____ second in this English test.

—Can you tell us what is important to a businessman? — ________ information.

It is generally considered that the key ______a foreign language well is nothing      but practice. 

They are forbidden ________,for they are still middle school students.

 his work these days，he hash’t _____ when to pay a visit to his parents·

 __________ five minutes_________ before the last train left, we arrived at the station.

All things____________, her paper is of great value.