1 . ________ from space, the earth, with water________ 70% of its surface, looks like a blue ball.

A．Seen; covered

B．Seen; covering

C．Seeing; covering

D．Seeing; covered

2 . When   _______ what is the most efficient way to protect oneself from COVID-19, the expert says no doubt it is wearing a mask.

A．asking

B．asked

C．to ask

D．having asked

3 . TV satellite dishes are often seen _______ in the remote areas when you drive along the mountainous highway.

A．to distribute

B．distributed

C．distributing

D．distribute

4 . The project ____ in 1989 resulted in farmers _____ their crops with trees or grass.

A．set up; to replace	B．to set up; replacing
C．set up; replacing	D．setting up; to replace

5 . To learn English well, we should find chances to hear English ______ as much as we can.

A．speak

B．speaking

C．spoken

D．to speak

6 . ______ to the gift was a note on which he expressed his appreciation for our reception during his stay here.

A．Being attached

B．Attached

C．Attaching

D．Having attached

7 . In Thailand, the normal greeting is a slight bow with the hands _____ together.

A．to press

B．pressing

C．pressed

D．being pressed

8 . The trees _____ in the storm have been moved off the road.

A．being blown down

B．blown down

C．blowing down

D．to blow down

9 . ______in painting, John didn’t notice evening approaching.

A．To absorb	B．To be absorbed
C．Absorbed	D．Absorbing

10 . Though ________ behind and feeling awkward, Jack kept on running until he reached the finishing line.

A．leaving

B．having left

C．left

D．being left