2.The other day, my brother drove his car down the street at _____ I thought was a dangerous speed.
If ______ in wet sand, the vegetables can ______ fresh for a long time.
There is no such place ______ you dream of in this world.
----When can we go to visit you?---- Anytime you feel like ______.
The trouble with such resources as coal, oil and gas ______ that they are not renewable.
Besides being able to walk on for three days without drinking, camels can also live for a long time ______ small quantities of food.