_______ trees is becoming smaller and samller and we must st

_______ trees is becoming smaller and samller and we must stop cutting down them .
A A number of B Many C The nunber of D Some
The child is lively ______ healthy so everybody likes to play with him .
A as well B as well as C too D also
No one ______ what she will wear at her Hong Kong show .
A knew B knows C knows about D knew about
______ knowledge alone doesn't make a good doctor .(medicine)
Without trees ,cities will be less beautiful .(保持句意不变)
If _____ ______ any trees ,cities will be less beautiful .