The emphasis on the importance of education has spurred scientific research.()

单项选择题The old man lodged an official complaint about his neighbours' behaviour.()

A. did
B. put
C. made
D. set up

单项选择题These programmes are of immense value to old people().

A. natural
B. fatal
C. tiny
D. enormous

单项选择题About one million Americans are diagnosed annually with skin cancer().

A. every year
B. severely
C. actively
D. every month

单项选择题Even in a highly modernized country, manual work is still needed().

A. physical
B. mental
C. natural
D. hard

单项选择题Finding a job can be depressing and disappointing, and therefore it is important that you are prepared().

A. exploiting
B. frustrating
C. profiting
D. misleading