The violence of Nature

a. saw       b. has seen       c. sees       d. had seen
5.  there was a big fire in the building last night. _______ , all the people were able to escape.
a. unluckily    b. fortunately    c. to be sure  d. above all  
6. children need many things , but _______ they need love.
a. above all      b. in all      c. as well        d. after all
7. the enemy general ordered all the house _______ after they broke though the defense line.
a. be set fire to         b. were set fire to  
c. caught fire          d. should be caught fire
8. the teacher _______ the exam marks on the wall so that the students could see them.
a. put up      b. put on    c. take down    d. take off
9. the boss went into the house,_______ the five boys _____ in the rain.
a. left ; standing          b. leaving ; standing 
c. left; stand             d. leaving; stand  
10. she started with the aim of doing harm to others only _______ ruining herself.
a. to end up with   b. ending up with 
c. to end          d. ending in
11. when the firemen arrived , the office building _______ for an hour.
 a. had been on fire           b. was on fire  
c. had caught fire            d. caught fire
12. we ______our breakfast when an old man came to the door.
a. just have had   b. have just had  
c. just had       d. had just had
13.before the first nonstop flight made in 1949, it______necessary for all planes to land for refueling.
a. would be  b. has been  c. had been d. would have been
14. the poisonous atmosphere will surely ______a lot of people.
a. effect  b. impress  c. cause  d. affect
15. thirty soldiers were killed and many more were ______.
a. wounded b. hurt  c. injured  d. damaged
16. a sudden blizzard occurred in beijing last night, ______great inconvenience in transport.