On the international market, the price of petroleum has been falling down, which is now _____ it used to be.
A．as one third as B．one third as much as
C．one third more than D．as one third much as
We can no longer ____to consider water an almost free resource that we can use as much as we like.
A．permit B．afford C．expect D．offer
After talking with his father for about half an hour, he felt better and began to know how to ____ this kind of situation.
A．strengthen B．explore C．handle D．arrange
---I failed today’s math test! What shall I do?
---____! Try once more.
A．Come on B．Hurry up C．Take it easy D．Don’t mention it
He lost his job three years ago; _____, he was seriously injured in an accident last week.
A．in the first place B．worse still C．on the contrary D．in other words
Of all the subjects, I like ____ history best because it gives us ____ useful knowledge of things in the past.
A．the; a B．不填; a C．a; the D．a; 不填
