（天津卷14）. As a new graduate, he doesn’t know _______ it takes to start a business here.
| A．how | B．what | C．when | D．which |
Many a student that mistake before.
| A．has made | B．have made | C．has been made | D．had made |
Neither he nor I for the plan.
| A．am | B．are | C．is | D．were |
Your new clothes fit you, but mine me.
| A．doesn't fit | B．don't fit | C．doesn't fit for | D．don't fit for |
Tom's teacher and friend Mr. Smith.
| A．are | B．is | C．are being | D．has |
All that can be eaten eaten up.
| A．are being | B．has been | C．had been | D．have been |