She was disappointed that most of the guests ___when he ___ at the party.
| A．left, had arrived | B．left, arrived | C．had left, had arrived | D．had left, arrived |
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 |
.—May I close the window?
—__________.It’s really a bit cold now.
| A．You are right. | B．Well done. | C．Go ahead. | D．You are welcome. |