—It’s meaningful us to do something for people in need．

—It’s meaningful        us to do something for people in need．—It’s really nice         you to think so．

#47643

for; of

of ; for

for; for

of; of

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）Tong  is  afraid         ,because  he  was terrified  by  an  air  accident．

#48421

fly

of flying

to flying

flying

It's very important _______ us ______ every day.

#48339

for;exercise

to;to exercise

for;to exercise

to;exercise

----Why do you always sleep ________?----Because I’m afraid of the dark.

#47797

by yourself

with the door open

with the window open

with the light on

Please call Gina_____234-5678.

#49186

for

They often go to the beaches ______ vacation.

#48045

for

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