21. —Everybody is going to climb the mountain . Can I go too , mom ?
— ______ Wait till you are old enough ,dear.
A. Will you B. Why not ? C. I hope so. D. I’m afraid not.
22. It is clear that ________ little money the invention will bring him can hardly support so large
________ company.
A．/; the B．the; a C．a; / D．a; the
