If people help cool down the earth, our earth ____________ better.

1.   ?    is
2.   ?    will
3.   ?    will not
4.   ?    will be

Chiangmai was ____________ in 2005.

1.   ?    flood
2.   ?    floods
3.   ?    flooded
4.   ?    flooding

Many want a car ____________they buy it.

1.   ?    because
2.   ?    so
3.   ?    and
4.   ?    but

Napat ____________ bottles at school and home since she did save the Earth project.

1.   ?    reuse
2.   ?    reused
3.   ?    has reused
4.   ?    reuses

Patai’s students always ____________ the air conditioners when they go to have lunch.

1.   ?    turn off
2.   ?    turned off
3.   ?    are turning off
4.   ?    have turned off

The garbage at my house is ____________ than the garbage at a shopping mall.

1.   ?    little
2.   ?    much
3.   ?    many
4.   ?    less

The oil price goes up ____________ the demand of oil increases.

1.   ?    or
2.   ?    so
3.   ?    because
4.   ?    and

The traffic ____________ terrible in Bangkok if we ____________ the public transportation.

1.   ?    will be, use
2.   ?    is, will use
3.   ?    won’t be, will use
4.   ?    won’t be, use

The glaciers and mountain snow ____________ for a long time.

1.   ?    melted
2.   ?    have melted
3.   ?    will melt
4.   ?    melt

Chanon ____________ many ideas about saving energy on the web board every week.

1.   ?    posted
2.   ?    posts
3.   ?    is posting
4.   ?    has posted