— Jim is very sick these days. He coughs so badly.— In my opinion, he really ________ listen to the doctor and cut down on smoking.
---- What’s your opinion about it?----You can _____at a glance that the building was poorly built.
____ it happens, her birthday is after mine.
It is such a modern machine ______ few of the workers know how to operate.
_____ and I will hit you.
China is larger than _____ in Africa.