Some parents are just too protective.They want to _______ their kids from every kind of danger,real or imagined.

Now that the forest was destroyed by a big fire, a large ________of trees ______ to be planted on the mountain．

I think he’s determined that he won’t give in—you may try your luck and see if you can persuade that old________fellow.

 In the power plant more than_______of the workers are out ________strike.

The keeper of the spring cleared away the leaves and branches, and wiped away the silt(淤泥) that would _______ have choked and polluted the fresh flow of water.