1 . The company ______ as a failure ______ into a major chemical manufacturer in the past decade.

A．regarded; evolved	B．regarded; has evolved
C．was regarded; evolved	D．has been regarded; has evolved

2 . As more people live closer and closer together, particularly ______ urbanization (城市化), risks ______ with fire increase.

A．as a result of; associated	B．because of; concerning
C．as a result; associating	D．because; concerned

3 . Let’s show our sincere respect for doctors, nurses, volunteers or anyone ________ in fighting against the epidemic.

A．involving	B．having been involved
C．involved	D．having involved

4 . The fitness room ________ last year is the biggest one in my city, but I ________ to since I ________ ill.

A．being built: haven't been; had been	B．having being built; hadn't been; was
C．built; haven't been; was	D．built; hadn't been; had been

5 . The people________ with rubbish bags in the 5-kilometer run for the environment.

A．armed

B．are armed

C．arm

D．to be armed

6 . During the COVID-19 outbreak, many people ________ to stay inside are looking for new hobbies.

A．were forced

B．had been forced

C．are forced

D．forced