Police have asked witnesses of the accident to ___________, as the victim is critically wounded, unable to give an account of the accident.
| A．come by | B．come across | C．come forward | D．come on |
The father as well as his three children ______ skating on frozen river every Sunday afternoon in winter.
| A．is going | B．go | C．goes | D．are going |
Every possible means _______ been taken to prevent the river _________.
| A．have; polluting | B．has; polluted |
| C．has; from being polluted | D．have; being polluted |
I read little now and I am always busy with my job. ________ my friend.
| A．Either does | B．So is | C．So it is with | D．So does |
The supermarkets____open until late every evening, which provides us much convenience.
| A．prove | B．maintain | C．continue | D．remain |
Miss Jones is leaving to get married and Miss White will be _______ the class.
| A．taking over | B．carrying out | C．taking away | D．getting over |