It’s necessary _________ us _________ more trees in spring every year.

 It’s necessary _________ us _________ more trees in spring every year.

#45914

of; to plant

for; to plant

of; planting

for; planting

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Thanks _____ the photo of your family．

#49226

for

it’s

and

 Lily thinks young people can learn how to care for others 　　　　 keeping pets.

#47829

Hou Yifan comes back to Xinghua ___________ Sunday.

#46623

 --Which would you like, tea or coffee? --Either ____ OK, but I prefer coffee ___milk.

#46097

is; with

is; to

are; with

are; to

Although they are twins, they have nothing ____ common.

#46647

with

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