He studied to get good grades.
A. carefully enough B. enough carefully C. careful enough
Now mobil phones are very popular and they are much than before.
A. cheap B. cheaper C. the cheapest
. soldiers and doctors were sent to help the people in Yushu after the earthquake.
A. Two thousands B. Thousands of C. Two thousands of
The forty-first Expo was held May 1st 2010 in Shanghai.
A. in B. on C. at
Tom is a clever boy. He plays piano very well.
A. the B. a C. an
We should be glad to help .
A. other B. others C. the others
