．—I did not know you were good friends．
—You___．I have known her since she moved here．You were abroad then．
| A．may have | B．needn’t have | C．couldn’t have | D．must have |
School children must be taught how to deal with dangerous _________．
| A．states | B．conditions | C．situations | D．positions |
It is said that dogs will keep you _________for as long as you want when you are feeling lonely．
| A．safety | B．company | C．house | D．friend |
To make members of a team perform better，the trainer first of all has to know their and weaknesses．
| A．strengths | B．benefits | C．techniques | D．values |
—I knocked over my coffee cup. It went right over ____ keyboard.
—You shouldn’t put drinks near computer.
| A．the; 不填 | B．the; a | C．a; 不填 | D．a; a |
George couldn’t remember when he first met Mr. Anderson, but he was sure it was ___ Sunday because everybody was at _____ church.
| A．/; the | B．the; / | C．a; / | D．/; a |