In some places women are expected to earn money men work at home and raise their children.
| A.because | B.but | C.though | D.while | 
By nine o'clock,all the Olympic torch bearers had reached the top of Mount Qomolangma,________appeared a rare rainbow soon.
| A.of which | 
| B.on which | 
| C.from which | 
| D.above which | 
It’s quite warm now.Leaving the heating on all the time ________ electricity.
| A.uses | 
| B.wastes | 
| C.costs | 
| D.spends | 
All her energies are ________ upon her children and she seems to have little time for anything else.
| A.absorbed | 
| B.devoted | 
| C.directed | 
| D.focused | 
-Brad was Jane’s brother!
 —________ he reminded me so much of Jane!
| A.No doubt | 
| B.Above all | 
| C.No wonder | 
| D.Of course | 
In recent years________global warming is becoming ________ concern for people all over the world.
| A.the;the | 
| B./;a | 
| C./;/ | 
| D.the;/ |