The newly-built pavilion is _____ the old one.
| A．three times so big as | B． 3 times bigger than |
| C．as three times big as | D． 3 times the big of |
—Why do you look so worried?
| A．had left | B．has left | C．was left | D．has been left |
It won’t be quite a long time ________ your son is back, so don’t be worried.
| A．that | B．since | C．before | D．until |
—What's the matter with the man hanging his head there?
—Well，if you ________ know, he was caught stealing my bike.
| A．must | B．may | C．can | D．shall |
GM, Chrysler and Ford expressed their desire that they ________ in want of a $25 billion government aid to pull through the financial crisis.
| A．were | B．would be | C．be | D．ought to be |
The gasoline _______. Let’s fill the car up at the next gas station.
| A．is running out | B．has run out |
| C．is being run out | D．has been run out |