________(29)
A.Them all
B.They all
C.All them
D.All they

________(30)
A.spoiling
B.spoil
C.spoiled
D.spoils

The Internet is a very fast and convenient way for us to get a lot of informations.
A.a very fast
B.convenient way
C.to get
D.informations

The bus is such an inexpensive means of transport that people take them very often.
A.such an
B.means
C.that people
D.them

The Internet has helped students study more ________________. (EFFECT)
A.Effectively
B.Effective
C.Effects
D.ineffectively

We are trying to have a(n) ______________ world. (POLLUTE)
A.Pollutants
B.Unpolluted
C.Pollution
D.Polluted

I am thankful to my teacher who always gives me lots of _______________ to better my knowledge. (COURAGE)
A.discouragement
B.Encouragement
C.Encourage
D.Encouraged

Ba said, Why don’t we stop eating chicken to avoid being infected with bird flu?”
A.Ba suggested that chicken shouldn’t be eaten for fear of bird flu.
B.Ba suggested that chicken shouldn’t be eaten.
C.Ba suggested that chicken shouldn’t be eaten so that they could avoid being infected with bird flu.
D.Both A, B and C

_ “Thank you very much” _ “______________”
A.Are you worried?
B.You’re welcome
C.Not all
D.Nothing

For most households, lighting ____________ for 10 percent to 15 percent of the electricity bill.
A.accounts
B.applies
C.asks
D.prepares