27.My uncle’s house in the downtown area is much smaller than ours , but it is twice _______ expensive .
As he _______ , he was surprised to see that the man had disappeared.
Studies show that sunshine, fresh air, and plenty of rest often _______ a person’s recovery from sickness.
I, not you , _____ in the wrong. Not I but he _____been invited .
The population of China is larger than ______ of any other country in the world.
Modern science has given clear evidence ______ smoking can lead to many diseases.