—The weather here in summer is so changeable. Please take an umbrella when you go out. —________.
— ____ in this street? — I think Mr. Black is the richest man.
I haven’t found my watch yet; in fact, I’m not sure ____ I could have done with it.
I was advised to arrange for insurance ____ I needed medical treatment.
They were surprised that a four-year-old boy should work out such a difficult problem ____ they themselves couldn’t.
I think you ought to end it ____ it is too late, or you’ll kill yourself.