Choose the best answer to complete each unfinished sentence.
Several ________ advanced countries have had plans to make desert more hospitable.
A.science   
B.scientific   
C.scientifically
D.scientist

Choose the sentence which has the closest meaning to the original one.
He cannot afford a new computer.
A.The new computer is so expensive that he cannot buy it.
B.Therefore, he would buy a new computer.
C.So, he would buy a new computer.
D.The new computer is so expensive but he can buy it

Choose the sentence which has the closest meaning to the original one.
Both Peter and Mary enjoy scientific expedition.
A.It is not Peter, but Mary, that enjoys scientific expedition.
B.Peter enjoys scientific expedition. Therefore, does Mary.
C.However Peter enjoys scientific expedition and Mary does.
D.Peter enjoys scientific expedition, and so does Mary.

(32) _____
A.change    
B.exchange  
C.transform
D.transfer

Which is not a problem in cold deserts?
A.Starvation
B.Hypothermia  
C.Frostbite   
D.Body heat

Error Identification.
Rain falls (A) occasionally in deserts so (B) desert storms are (C) often violent (D).
A.falls
B.so
C.are
D.violent

Choose the best answer to complete each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
I am going shopping for food this evening ________ I do not have to go at the weekend.
A.so   
B.but  
C.however 
D.moreover

Choose the best answer to complete each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
Can you make a ________ estimate of how much our expedition in the desert may be?
A.rough  
B.roughly 
C.roughing   
D.roughen

Choose the best answer to complete each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
Deserts are often composed of ________ and rocky surfaces.
A.water   
B.trees   
C.oil   
D.sand

Choose the best answer to complete each unfinished sentence.
I must say that you have done very well. ________, you should be aware that you still have a lot of thing to learn.
A.Therefore   
B.So
C.But   
D.However