_________a stone tower near the old pine tree.
| A．It used to be | B．There used to be |
| C．There used to have | D．It is used to be |
In ancient China, a gold dragon on the emperor’s clothes was regarded as a _____ of power and position.
| A．mark | B．sign | C．symbol | D．feature |
This year the price of rice _____ about twenty percent.
| A．was raised | B．has been risen for | C．has risen by | D．has raised to |
Experts are trying to work out a plan to deal with the problems caused by global warming ______ it is too late.
| A．when | B．if | C．before | D．until |
We haven’t discussed yet ______ we are going to place our new furniture.
| A．that | B．which | C．what | D．where |
I think this bike is a little better than that one, but the shopkeeper charged me almost_______ for it.
| A．as many twice | B．twice as many |
| C．twice as much | D．as much twice |