问题

The new education system is said to be _______ to thesuccessful development of the country.

A:apparent
B:central
C:allergic
D:generous

正确答案是：

同类题型

Barack Obama was very happy when many supporters voted ________ him

________ the girls enjoy ________ TV. –Yes，they ________.

“Remember not ______ your homework at home again,” said the teacher.

This ruler is too short. I need a one.

In an experiment, pet owners are being encouraged to take their pets to work, a move _______ can be good for both the people and the pets.