People living in the desert choose to keep their ancient lifestyles and customs, _______people in cities throw away their cultural traditions.
| A．when | B．if | C．unless | D．while |
The flowers _________sweet in the botanic garden attract the visitors to the beauty of nature．
| A．to smell | B．smelling | C．smelt | D．to be smelt |
—You have made progress in your English study, haven’t you?
—Yes, but much ____.
A remains to do B is remained to do
C remains to be done D is remained to be done
There is no possibility ________ he will keep his word．He is always telling lies.
| A．how | B．whether | C．when | D．that |
The boy ________ in the bed ________ to his friend that a cock laid an egg yesterday.
| A．lay; lay | B．lying; lay | C．lying; lied | D．lied; lying |
—How about putting some pictures into the report?
—________．A picture is worth a thousand words．
| A．No way． | B．Why not? | C．All right? | D．No matter |