On the top of the mountain two towers built more than 500 years ago.
| A．is standing |
| B．are standing |
| C．stand |
| D．stands |
The Dragon Boat Festival, which is celebrated _______QuYuan, falls on the fifth day of the fifth lunar month.
| A．in praise of | B．in search of | C．in memory of | D．in want of |
_____time goes by, my grandfather’s memory seems to get worse and worse.
| A．Though | B．As | C．Because | D．Since |
Mr. Li lent me a book last week, _____I have learned a lot about earthquakes.
| A．to which | B．for which | C．from which | D．with which |
--- Have you moved into the new office building?
---Not yet .It ______
| A．is decorating | B．has been decorated |
| C．is being decorated | D．has been decorating |
Tourists were told _____their sunglass to protect their eyes from the strong sunlight
| A．to not take off | B．not to take off |
| C．not taking off | D．not take off |