They ___________ with the aim of becoming number onein the league.

Why is the cake so expensive—- Maybe you don’t know a cake made of wheat costsless than _____ made of rice

Which do you like ,summer or winter?—I prefer summer.

With some technical problems to be solved, it may be a while _____the system is put into use[ ]

Loneliness is a feeling _______ people experience a powerful rush of emptiness and solitude.