—What time will Mr. Brown be back to China?
—Sorry. I don’t know______.
| A．when did he go abroad | B．why he is going abroad |
| C．how soon will he be back | D．how long he will stay abroad |
.
They want to employ 90 people, __________last year.
| A．three times as many as | B．more than three times |
| C．as three times as | D．three times that they did |
.
The company has changed some of its working practices__________complaints and criticism from the customers.
| A．in respect to | B．in return for |
| C．in exchange for | D．in response to |
.
--- I hear you__________at Smith’s.
--- Yes, I__________there for about three months.
| A．work; had been working |
| B．worked; was working |
| C．are working; have been working |
| D．worked; have worked |
.
--- I think this accident happened for many reasons.
--- Richard is partly to blame, __________way you look at it.
| A．what | B．which | C．whatever | D．whichever |
.
The newspapers in my hometown don’t contain as many colorful pages as the ones in Nanjing
__________.
| A．contain | B．do | C．appear | D．seem |