1 . By the end of last month, the film named Hi,Mom ______ for 10 weeks consecutively.

A．has shown

B．had shown

C．had been shown

D．has been shown

3 . We expressed our congratulations to Mr. Smith, because he ________chairman of the football club.

A．has elected

B．had elected

C．has been elected

D．had been elected

4 . Mark is a genius. By the time he graduated, he ________ jobs by a dozen computer companies.

A．has offered	B．has been offered
C．had offered	D．had been offered

5 . Large quantities of information, as well as timely help________ to us over the past 2 years.

A．have been offered	B．has been offered
C．was offered	D．had been offered

6 . _________the telephone number several times, but he couldn't learn it by heart.

A．Having told	B．Having been told
C．Although he had been told	D．He had been told

7 . Lisa had to have her car repaired in a garage because it _______ seriously .

A．damaged	B．had been damaged
C．was being damaged	D．had damaged

8 . By the end of the 1980s. about 9.5 million elephants _________for the ivory trade in South Africa.

A．were killed

B．were being killed

C．had been killed

D．have been killed

9 . A rescue worker risked his life saving two tourists who ________ in the mountains for two days.

A．are trapping	B．have been trapped
C．were trapping	D．had been trapped

10 . At the awarding ceremony held in Tokyo, the scientists were surprised by what ______ in science and technology.

A．has discovered	B．has been discovered
C．had discovered	D．had been discovered