—Do you have ________ difficulty working out the problem?—Yes. It is ________ me.
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.
This is the first time that we ________a film in the cinema together as a family .