问题

Marking “Earth Day 2009” with his plan for _____ energy．President Barack Obama on Wednesday called for energy exploration.

A:alternative
B:traditional
C:available
D:inexpensive

正确答案是：

同类题型

I can’t see my ID card. I must _______it.

I felt disappointed and was about to leave something came to my attention.[ ]

Before driving into the city, you are required to get your car_______。

Fifteen people were present　　　　the meeting held yesterday,and five were absent　　it

Out _____, with a stick in his hand. [ ]