You are supposed _____ abroad more than three times so far.

     A. to go                         B. to be                         C. to have gone             D. to have been

Hundreds of employees were made redundant when the company was ____ by another one.

     A. taken over                B. taken on                   C. taking in                   D. being taken place

The computer has had an enormous ______ on the way we work and enjoy life.

     A. impression                B. influence                  C. change                      D. alternation

Family is a good _____ from which you can join the society with confidence.

     A. base                          B. basic                         C. basis                         D. basing

The government has made a serious attempt to raise the _____ of living.

     A. cost                          B. standard                   C. mode                        D. level

My math teacher is the one who is the most _____ of the staff in the school.

     A. respectable               B. respected                  C. respective                 D. respectful

Do you know that _____ longest river in _____ world is _____ Nile?

     A. a/the/the                   B. the/the/the                C. Ǿ/the/a                     D. the/the/ Ǿ

My grandfather spends a lot of time _____ care of the plants in the garden daily.

     A. to take                      B. taking                       C. for taking                 D. taken

The clock was _____ by the Chinese in the 11th century.

     A. built                          B. kept                          C. examined                  D. made

The air that surrounds our planet is both odourless, colourless, and invisible.

     A. The air                      B. our planet                 C. both odourless          D. invisible