In many factories computers have ___________ the work of thousands of workers.
| A．taken place | B．taking place | C．taken place of | D．taken the place of |
Why not look up the new word in a dictionary _____ you don’t know it ?
| A．if | B．that | C．though | D．whether |
Of the two lectures, the first was by far _____, partly because the speaker had such a dynamic style.
| A．the best | B．better | C．the better | D．much better |
---It’s a lovely day, isn’t it?
---Yes. I love _____ when the weather is like this. Why don’t we sit outside and have our lunch?
| A．this | B．that | C．it | D．one |
In which play is _____ your brother appear?
| A．that where | B．this when | C．it that | D．it where |
It must be he that has stolen Mr. Smith’s purse, _____?
| A．hasn’t he | B．isn’t he | C．mustn’t it | D．isn’t it |