Research __________ out by several experts suggests that the oil spill in the Gulf has caused the fatal damage to the environment.
The library needs ______, but it will have to wait until Sunday.
There is ______ word in the dictionary.
The teacher asked us to put weekends ______ good use.
______ the two oceans the Pacific is ______.
Only when _____ the painting _____ decide whether the painting is worth buying.