The 2010 Shanghai World Expo is well worth ______.
| A．visit | B．visited | C．to visit | D．visiting |
To handle the financial crisis, the new government has to work more ______ with other nations, especially the less-affected ones.
| A．formally | B．smoothly | C．carefully | D．closely |
—What do you think of the plan?
—I feel ___that we ought to give it up at once.
| A．strong | B．stronger | C．strongly | D．it strong |
The little town has now grown into a modern big city, and is ___ what it used to be.
| A．twice the size than | B．two times the size as | C．twice the size as | D．twice the size of |
—Are you going to the football game?
—No, the tickets are ____expensive for me.
| A．very much | B．so much | C．far too | D．highly |
The US is about the same size as China, but its population is five times_ ___.
| A．as little | B．smaller | C．as few | D．fewer |