-- Do you know why he left so early ?--_________

-- Do you know why he left so early ?--__________ for the English test, I guess.

#49761

To study

Study

Studied

Studying

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The best way ______ your English is _____ an English club.

#49697

to improve . to join

improving , joining

to improve , join

improving, to join

--Thanks a lot for ________me with my English. -- You are welcome.

#49999

help

helps

helping

helped

My mother often spends 2 hours  ______ housework every day.

#51027

does

doing

to do

They tell us some ways _________English well.

#49212

teach

learning

to learn

teaching

We should study the new traffic rules and 1earn how___________ ourselves．

#49689

protect

to protect

protecting

protected

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