The Canadian friends have given us a lot of books, few of _____ a bit difficult for us.
| A．them are | B．that is | C．which are | D．which is |
The story is very interesting, and it is _______.
| A．well worth reading | B．well worthy of reading |
| C．very worthy reading | D．worth to read |
What _______to go swimming in a river in summer!
| A．fun is it | B．funny it is | C．a fun it is | D．fun it is |
_______ I made a speech in front of so many people, I felt quite nervous.
| A．The first time when | B．For the first time |
| C．By the time when | D．The first time |
______ you look at it, the fast, exciting pace of life in New York city is fascinating and will continue to fascinate more and more people.
| A．How | B．What | C．However | D．whatever |
______ reduce pollution，the government has made a policy to restrict the use of plastic bags in some areas．
| A．In order that | B．So as to | C．So that | D．In order to |