In a courtroom it is sometimes difficult to ______ who is innocent and who is guilty.
___ most of the earth’s surface is covered by water, fresh water is very rare and precious.
Some experts think that language learning is much ___ for children as their tongues are more flexible.
The parents suggested ___ in the hotel room but their kids were anxious to camp out during the trip .
We ___ our new neighbors yet, so we don't know their names.
Both sides have accused of breaking the contract ___.