---Fifty dollars for such a T-shirt! You _______ be joking!
---I’m serious．It’s made of silk.
| A．must | B．need | C．may | D．can |
Twenty-eight and twelve
| A．are fourty | B．is forty | C．is fourty | D．are forty |
—Can I help you?
—. I want a red skirt.
| A．Thank you | B．I’m sorry | C．You’re welcome | D．Yes, please |
These shirts only 5 dollars. Do you want ?
| A．are; it | B．is; them | C．are; them | D．is; it |
—Does the bookstoremath books?
—Yes. Do you want to______ one?
| A．sell; buy | B．sell; sell | C．buy; buy | D．buy; sell |
—How muchthe socks?
— __ twenty dollars.
| A．is; It’s | B．are; They’re | C．are; It’s | D．is; They’re |