17．When news came ________ the ship was missing，she almost broke down，for her husband was on board．（　　）

A．

which

B．

that

C．

what

D．

whether

16．-Hi，Linda！What are you doing？-Hi，Bob!I'm preparing for tomorrow，s test．
-（51）GWell，the library is full and the classroom is too noisy．Are you ready for the test？
-I'm  afraid not．I feel very nervous．We don't have much time left．
-（52）BMaybe that can help．
-Good idea．How many units would be included？
-Three．They are Unit 4，Unit 5 and Unit 6．
-Really？I thought Unit 6 would be not covered．
-It will．（53）FYou go first．．
-All right．Name 3 European countries．
一 Easy．France，Germany and Russia．I can even say more．
-（54）DNow it's your turn to ask questions．
-OK．What are the seven continents of die world？．
-Asia，Europe，Africa，and…I really can't remember them all．
-（55）AYou still have some time．
A．Don't worry．
B．We can prepare together．
C．We can go over their names．
D．It seems that you are well prepared．
E．So many countries to remember．
F．Now let's ask each other questions．
G．Then why are you here in the garden？

15．父亲听到这个消息很兴奋．（excited）Fatherwasveryexcitedtohearthenews/whenheheardthenews．．

14．Many experts believe that teachers'development is _______ the key to better education lies．（　　）

A．

that

B．

what

C．

where

D．

which

13．The number of various educational programs is increasing，_______ important roles have been realized by more and more people．（　　）

A．

whose

B．

where

C．

which

D．

that

12．Researchers have come to the conclusion over the last 5years ____ teens need to sleep until about 8：00the next morning．（　　）

A．

when

B．

what

C．

whether

D．

that

11．Mr．Green asked me to borrow a book for him，_______about how to be a good volunteer．（　　）

A．

it

B．

one

C．

ones

D．

which

10．-We've just sold out the last copy of this dictionary．
-Well，it doesn't mailer．I think I might get ____ in another bookshop．（　　）

A．

one

B．

that

C．

this

D．

it

9．The Smiths prefer a house in the country to spend their late years to____ in a large city．（　　）

A．

one

B．

it

C．

those

D．

this

8．The Green Corporation donated the property to the state of California，with one condition ____ the Green family would be allowed to use it when they wished．（　　）

A．

what

B．

which

C．

when

D．

that