—Why did you plant so many trees? — _____

—Why did you plant so many trees? — ______ the environment.

#49943

Improve

To Improve

Improved

Improving

推荐题目

Let’s ________ football this Sunday.

#50451

to play

playing

play

plays

It was Sunday, so we decided ___________ camping in the mountain.

#49161

to go

went

goes

I think a good friend makes me______.

#50190

laugh

to laugh

laughs

laughed

 —Could you tell me when________ in Bangkok? —Sorry, I don’t know. I even want to know what to do when  ________.

#49020

to arrive, to arrive

arriving, to arrive

to arrive, arriving

should we arrive, arriving

Mr. White always expected his son _______________ an active part in the classes.

#48954

taking

take

takes

to take

共1553题