At last the determination and patience of the scientists _______in 1996 with a breakthrough -------- the cloning of Dolly the sheep.
| A．paid off | B．paid out | C．paid back | D．paid up |
---I will not come here tomorrow.
--- _____________to me, because I don’t care.
| A．It doesn’t make any difference | B．It makes much difference |
| C．It doesn’t make no difference | D．It makes a difference |
16．Please tell me how the accident_____. I am still in the dark.
| A．came by | B．came out | C．came to | D．came about |
______ with the size of the whole earth, the biggest ocean does not seem big at all.
| A．Compare | B．When comparing | C．Comparing | D．When compared |
Is it in the restaurant _____ we had dinner last Sunday ______ you left your wallet?
| A．where ; where | B．where; that | C．that ; where | D．that; that |
I don’t understand what the engineer means, but I’ve got ______ rough idea of ______ project plan.
| A．the; a | B．不填; the | C．the;不填 | D．a; the |