—Shall I lock the lab now before I go home?
—_____. I’ll check it myself later.
| A．Go ahead | B．No problem | C．All right | D．Don’t bother |
Although they are twin sisters, they have nothing__________.
| A．in relief | B．in peace | C．in common | D．in cash |
He is wearing sunglasses to ____ his eyes from the strong sunlight .
| A．prevent | B．protect | C．stop | D．hold |
I have bought two ball pens, _____ writes well.
| A．none of them | B．neither of them | C．none of which | D．neither of which |
I bought a dress for only 10 dollars in a sale; it was a real ______.
A. exchange B. business C bargain D. reward
--- Did you have ____fun on your trip ?
---- Yes,. It’s really ____ pity that you didn’t come with us.
| A．a；a | B．a；the | C．/；the | D．/ ；a |