1 . His writing is so confusing that it’s difficult to make out ________ it is he is trying to express.

A．that

B．how

C．who

D．what

2 . They reached an island ___________ is famous for a variety of plants.（用适当的词填空）

3 . The beautiful island is a place__attracts many people to go to travel. （用适当的词填空）

4 . The baseball team________ my cousin plays for is doing really well this year. （用适当的单词填空）

5 . The Oxford English Dictionary is necessary for learning English, so you'd better buy ___.

A．this

B．that

C．it

D．one

6 . Some irresponsible websites allowed restaurants to post false pictures ________ could mislead customers.

A．who

B．that

C．when

D．where

7 . To his mind, the collaborative development of Beijing, Tianjin and Hebei province is to solve the problems _____ Beijing faces, such as overpopulation, traffic jams, and etc.

A．that

B．whether

C．when

D．why

8 . The employment rate has continued to rise in big cities thanks to the efforts of the local govenments to increase            .

A．them

B．those

C．it

D．that

9 . You can complain, but I doubt _____ it’ll make any difference．

A．if

B．what

C．that

D．how

10 . The road conditions there turned out to be very good, ___ was more than we could expect.

A．it

B．what

C．which

D．that