All reference books ________, he didn't find the key to the question.
Schools have rights to their own rules based on the general conditions of the students.
While our city tries impatiently to change its appearance by tearing down old buildings, more and more citizens are suggesting ways to ____ the historically important architecture.
—Excuse me. I want to buy some milk, but I can’t find a supermarket.—I know nearby. Come on, I’ll show you.
I don’t think the experiment is _______ failure.At least we have gained _______ experience for future success.
His name was Tony and he seemed ____ like a human ____ a machine.