___ I came to the city , I was deeply impressed with its beautiful scenery .

In our class there are 46 students, _____ half wear glasses.

Now the air in our city is ______ than it used to be. Something must be done to stop it.

In most cases, customers can’t help ______ to buy things they actually do not need.

My father has just bought a new computer.— Really? How lucky are!