He claims to _____ a round black creature moving quickly through the water.
| A．see | B．have seen |
| C．be seen | D．be seeing |
Hardly ______ he got out of the court ______ the reporters raised a lot of questions to him．
| A．had … when | B．had…than | C．did…when | D．has…than |
Perhaps the day will come ____ people will be able to breathe clean air in cities．
| A．when | B．while | C．as | D．since |
Modern forms of transportation and communication have done much to ______ the isolation（隔离）of life in Alaska．
| A．break down | B．break out | C．break into | D．break through |
I can ________ the house being untidy, but I hate it if it’s not clean．
| A．come up with | B．put up with | C．turn to | D．stick to |
_________ Kunming you see today is quite _____ different city from what it used to be．
A．The, 不填 B．不填, a C．The, a D．A．a