In the rainforest of the Amazon, 50 to 150 plant species ______ every day.
| A．are being destroyed | B．are destroying |
| C．have been destroyed | D．destroyed |
With so much work his head all day long，he feels rather stressed in his daily life．
| A．filled | B．to fill | C．filling | D．being filled |
Zhuhou, _______ on the Xiang River, is an important city, second only to Changsha.
| A．located | B．locating | C．being located | D．to be located |
The flowers his friend gave him will die unless______ every day.
| A．watered | B．watering | C．water | D．to water |
The boy wanted to ride his bicycle in the street, but his mother told him _____.
| A．not to | B．couldn’t | C．not do it | D．do not to |
It’s cold in here. We must have the fire day and night.
| A．burn | B．burns | C．burnt | D．burning |