V. Fill in each blank space with one appropriate from the box.
Some day people will certainly try to build settlements on the moon. The best places for houses in a moon town will be a cave or a tunnel. Underground houses will not be squashed by meteorites that constantly fall on the moon (26)               outer space. This will be important on the moon, (27)               daytime is so hot that food could be cooked in the rocks, and the nights get bitterly cold.
Pioneer moon homes may be made of airtight plastic that can be (28)               like a balloon inside the cave. The reason for this is that the moon has no air around it. The pioneers will have to take along from the earth the oxygen masks when they are away from home. But the balloon house (29)               will be filled with air. Perhaps the house will have beds, tables, and chairs, built into it. These can be inflated, too. So people will sleep, eat and work on air! Moon-house building will be easy. The moon’s gravity is less than the earth’s. Everything weighs only (30)               as much as it does on the earth.
(26) 
A.into                         
B.to                            
C.from                        
D.in

A.discussion
B.decision
C.television
D.pleasure

III. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
The Great Wall is China's most popular ______.
A.construction            
B.attraction                 
C.impression             
D.contribution

III. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
The structure consisted ______ approximately 2 million blocks of stone,
A.on                           
B.with
C.of                            
D.in

Martar along with her cousins from New York are planning to attend the festival.
A.along
B.from
C.are
D.attend

You (walk) _______too fast. That‘s why you are tired.
A.walked
B.have walked
C.walk
D.will walk

He (elect)_____ president of the football club at their last meeting.
A.has elected
B.elected
C.was elected
D.had been elected

He said to me, "Shut this door, don't lock it". He told me ............
A.to shut the door, don't lock it
B.shut the door, not lock it
C.shut the door, don't lock it
D.to shut the door, not to lock it

He ................arrive at the office on time.
A.used always to
B.used to
C.always used to
D.used to always

Our teacher often gives us ..............beside the in-class assignments.
A.housework
B.homework
C.part-time work
D.full time work