With the help of the machine, we can make the cake ____________ than before.

More than one student _________ read the novels, which _________ written by David.

____ of the land in that district____ covered with trees and grass.

If only I＿＿＿＿＿how to operate a computer as you do!

They asked me so many _____ questions that I got _______ at last.