—Why does the lake smell terrible?
—Because large quantities of water .
| A．have polluted | B．have been polluted |
| C．is being polluted | D．has been polluted |
—According to my grandma，it is a good idea to eat chicken soup when you have a cold.
—________，scientists agree with her.
| A．Sooner or later | B．Once in a while |
| C．To be exact | D．Believe it or not |
You know it’s love when all you want is that person to be happy，________you’re not part of their happiness.
| A．even if | B．as if |
| C．if only | D．if ever |
When________comes to an interview day，we’ve got many things in mind，such as being on time and giving proper answers.
| A．that | B．this |
| C．it | D．one |
—He failed the exam again！What should I do，Miss Wang?
—In my opinion，your son is________than stupid.
| A．quite lazier | B．much lazier |
| C．more lazy | D．lazier rather |
A recent study has ________an unexpected conclusion that the African elephant should be divided into two different species.
| A．kept up with | B．made up with |
| C．caught up with | D．come up with |