I am happy with everything that my best friends offered me at my birthday party.A. am crazy aboutB. am proud ofC. am pleased with
The number of the students in our school always growing.
Leaves fall _______piles ________the ground
They think wolves are dangerous _________humans so this leads _______the danger of wolves.
Wolves often work __________a team and they never kill for __________.
We should tell hunters _______tigers.