The new safety problem of contaminated（受污染的）milk is much more widespread， at least 22 dairy companies and their milk products that have appeared nationwide.
| A．to involve | B．involved | C．involving | D．being involved |
—Jack failed the driving test again.
—The question is_____ we can help him avoid making the same mistake.
| A．how | B．why | C．what | D．whom |
My meaning didn’t ___so I explained it a second time.
| A．get around | B．get over | C．get through | D．get across |
Little _____ at that time that this“boring”subject would become his favourite later on.
| A．he knew | B．he has known | C．did he know | D．has he known |
It’s almost five years____we saw each other last time .
| A．before | B．since | C．after | D．when |
Our city has experienced ___this year as it did last year.
| A．twice as much rain | B．rain twice as much |
| C．as twice much rain | D．twice rain as much |