I personally think__more listening, speaking, reading and writing is the key to_

I personally think__more listening, speaking, reading and writing is the key to__our English.

#95944

Doing; improve

To do; improve

Do; improving

Doing; improving

推荐题目

The film was made ________ the World War II.

#90807

base on

based on

to base on

based in

With her anger ______, the thought of punishing him arose in her mind.

#96403

disappearing

adding

growing

boiling

Of millions who have watched the Gangnam Style video, there are a growing number of celebrities ________ their love for the song.

#92360

expressing

to express

express

will express

I like getting up very early in summer. The morning air is so good____.

#92246

to breathe

to be breathed

breathing

being breathed

Martin Cooper , a US researcher , was considered _______ the first cell phone .

#96873

invented

to invent

having invented

to have invented

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