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Nowadays scientists are working hard to find out ______ to do with air pollution.
#37100
A
how
B
why
C
when
D
what
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 He was ______ that he couldn’t move.
#42543
A
too cared
B
so scared
C
too scared
D
so scaring
Take an umbrella with you, ________ you’ll get wet. 
#38834
A
and
B
but
C
or
D
so
— Have you heard someting about MH370 ? —Yes. It was missing ________ March8,2014.
#40424
A
At
B
On
C
In
D
For
 — ________ did you put my glasses just now, Bill?—On the desk.
#36136
A
Where
B
Why
C
What
D
When
It's much               to have a small lovely room than a big cold one.
#38244
A
good
B
well
C
better
D
best