It’s difficult ______me to afford the car. And It’s generous ______you to help me.
| A．of, of | B．of, for |
| C．for, of | D．for, for |
---Who’s that at the door, Tony?
---________ is the postman, I think.
| A．He | B．It | C．This | D．That |
The plan they are talking about _________ improving greatly.
| A．need | B．needs | C．needing | D．Needed |
—I’m sorry, sir. I’ve made lots of mistakes in the monthly exam.
— Never mind. ___________, the exam is a bit difficult.
| A．In all | B．Above all |
| C．After all | D．First of all |
—What can you see _________ the bridge, Millie?
—Oh, an elephant is standing over there. Let’s go and see it.
| A．across | B．through | C．above | D．Over |
— Must I turn off the gas after cooking?
— Of course. You can never be________ careful with that.
| A．enough | B．too | C．so | D．very |