________energy, we turn off the lights for Earth Hour on the last Saturday in March
#89730
A
Saving
B
To save
C
Saved
D
Having saved
推荐题目
—What happened to your shoes? —They want _____ .
#98396
A
to mend
B
being mended
C
mending
D
mended
_____ deep down in the earth, the dead forests rotted away and became coal.
#97260
A
Buried  
B
Burying 
C
To bury  
D
Being buried
 The editor’s job is to keep the newspaper_____ and________to the readers.
#98124
A
balanced; interested
B
balancing; interesting
C
balanced; interesting
D
balancing; interested