---Excuse me, is this seat taken?---____.Please have a seat.
| A．Yes, it is | B．All right | C．No, it isn’t | D．OF course |
--- How long are you staying?
--- I don’t know. .
| A．That’s OK | B．Never mind | C．It depends | D．It doesn’t matter |
The building _______now beside the park was designed by a famous designer.
| A．to be built | B．being built | C．built | D．building |
____ be sent to work there?
| A．Who do you suggest | B．Who do you suggest that should |
| C．Do you suggest who should | D．Do you suggest whom should |
There was a terrible noise _____ the sudden burst of light.
| A．followed | B．following | C．to be followed | D．being followed |
If a thing is worth ______, it must be well ______.
| A．doing; done | B．to do; doing | C．to do; done | D．being done; doing |