—Hello，I’m calling to complain about one of your sales staff.
—Oh，________
| A．you must be kidding! | B．what a shock! |
| C．why not? | D．what happened? |
—Who left the door open?
— Oh, sorry. I _____ the door.
| A．ought to lock | B．should lock | C．ought to have locked | D．could lock |
The traffic problems we are looking forward to ______ solved should have attracted the government’s attention.
| A．see | B．seen | C．be seen | D．seeing |
He seemed to be looking for the words ____ he could express his idea.
| A．for which | B．with which | C．in whom | D．in that |
A modern city has been set up in ____ was a wasteland ten years ago.
| A．what | B．which | C．that | D．where |
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 |