1 . Soldiers and volunteers worked as hard as they could _________ away bricks and rocks, and rescue those _________ under the ruins.

A．to pull; were buried	B．to pull; buried
C．pull; were buried	D．pull; buried

2 . A study published in the magazine Science suggests that 58% of the world’s land surface________ below the biodiversity level________ safe for the health and happiness of human societies already.

A．reduced; has considered	B．reduced; has been considered
C．has reduced; considered	D．has been reduced; considered

3 . Witnesses say ______ police opened fire after the bombing, causing some of the casualties.

A．prevented

B．comforted

C．signaled

D．panicked

4 . The 14^th National Games ________ in Xi’an made Xi’an Middle School of Shaanxi Province the first middle school ________ the games.

A．being held; holds

B．held; held

C．held; to hold

D．to be held; holds

5 . To be honest, I’m not confident of completing the task________by the manager on time.

A．assigned

B．assigning

C．to assign

D．having been assigned

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

A．armed

B．are armed

C．arm

D．to be armed

7 . It can be hard for you to imagine what trouble I have had _______ the problems _______ in the meeting held last week.

A．to deal with; refer to	B．dealing with; referring to
C．dealing with; referred to	D．to deal with; referred to

8 . 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

9 . Thousands of products _______ from coal are now in daily use.

A．made

B．make

C．making

D．to make

10 . She asked if there was anything ________ for tonight.

A．to plan

B．planned

C．that plans

D．planning