Waste paper shouldn’t _____ everywhere. It’s our duty to keep our classroom clean.
A. be thrown               B. throw                      C. is thrown

Computers ________widely in our daily life.

— Your classroom is really bright and clean.　　
— It       after school every day.　　
A. is cleaned       B. cleaned      C.  was cleaned 　

Yuan Longping, a great person in China, _____as “father of hybrid rice”

It is true that knowledge_____ rather than being taught.

These books should      to the library on time.

China has offered much help to Japan since it ______ by the earthquake and tsunami（海啸）.

Thousands of people        after the powerful earthquake happened in Japan on March 11^th.
A  saved   B  was saved   C  were saved   D  has saved

Soft drinks _______ to children for free in some restaurants on Children’s Day.

Don’t worry. Your package           here until you come back, so enjoy shopping here.