________ is as much an art as it is ________ science.
| A．Cloning; a | B．Clone; / | C．To clone; the | D．Cloning; the |
一We only have seats in the very back row．
一．I’ll take two tickets．
| A．That’s OK． ‘ |
| B．I don’t quite follow |
| C．It’s a pity |
| D．Funny you say that |
一It’s cloudy outside．Please take anumbrella．
一
| A．Yes，take it easy |
| B．Well，it just depends |
| C．OK，just in case |
| D．All right，you’re welcome |
How often do you eat out?
，but usually once a week．
| A．Have no idea |
| B．As usual ‘ |
| C．It depends |
| D．Generally speaking |
I don’t think 1 will win a lottery(彩票)of 5 000 000 dollars in a11 my life．
一Well．Everything can happen．
| A．you can never tell |
| B．you’re kidding |
| C．what you say |
| D．you made it |
一I’m sorry．I’ve left my credit card home.And I don’t have enough cash for the meal．
一Don’t worry．．
| A．I’ll invite you |
| B．It’s my pleasure to pay you |
| C．It’s my treat |
| D．It’s at your expense |