Having failed my French exam,I decided to___science subjects
| A．stick to |
| B．insist on |
| C．concentrate on |
| D．adapt to |
Scientists still wonder whether cloning will help or harm us and where it ____ us.
| A．has led | B．is leading | C．had led | D．would lead |
— It’s such a pity. I didn’t get the first place in the exam.
— Come on. __________
| A．Nobody is perfect. | B．Congratulations! |
| C．Lucky you! | D．You really did badly |
It would be unfair to clone any extinct animalsthey were to live in a zoo.
| A．or | B．if | C．but | D．whether |
It seems the benefits are so obvious that we hope yousupport our side’s point of view.
| A．will can | B．need to | C．will be able to | D．may |
Although some boys in his situationto crime to get money for food and clothing, Louis never did.
| A．might have turned | B．might be turning |
| C．had turned | D．will turned |