【推荐1】The president and his wife are said___________ at an international school ball in Moscow in 1999.

A．to meet

B．having met

C．meeting

D．to have met

【推荐2】The flu is believed ______ by viruses that like to reproduce in the cells inside the human nose and throat.

A．to be caused

B．to have caused

C．being caused

D．causing

【推荐3】He was seen ________ football with his classmates there.

A．play

B．to play

C．played

D．being played

【推荐1】The spread of the Ebola virus in Nigeria is believed ______ by August, 2014．

A．to be controlled	B．to have been controlled
C．to control	D．to have controlled

【推荐2】This old castle is said ______ from designs by a famous architect in the 16th century.

A．to build

B．to have built

C．to be built

D．to have been built

【推荐3】The flood is believed ________ more than 50 people and made thousands homeless, ________ it perhaps the most destroying flood in history in the area.

A．killing; to make	B．to have killed; making
C．to have killed; having made	D．having killed; making