His ears are highly ___ to any unusual sound in the machine, that is how he found the fault.
| A．sense | B．sensitive | C．sensitively | D．insensitive |
He is quick to ____ himself to new environment.
| A．adopt | B．adore | C．adapt | D．adept |
You can go out, _________you promise to be back before 11 o'clock.
| A．as far as | B．so far as | C．when | D．so long as |
---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 |