Sporting events

28.  it was not until she got home ______ jennifer realized she had lost her keys.          
    a. when     b. that     c. where     d. before
29.—____that he managed to get the information?  —oh, a friend of his helped him.
a. where was it    b. what was it    c. how was it    d. why was it
30. i just wonder _______ that makes him so excited.
a. why it does     b. what he does      c. how it is            d. what it is                 
五、語法專練（情態動詞）（1’×16）
1. ---how’s your tour around the north lake? is it beautiful?
  ---it ________ be, but it is now heavily polluted.
   a. will         b. would        c. should       d. must   
2. in crowded places like airports and railway stations, you___ take care of your luggage.
a. can     b. may     c. must       d. will    
3. —what do you think we can do for our aged parents?
—you ________ do anything except to be with them and be yourself.
a. don’t have to  b. oughtn’t to  c. mustn’t     d. can’t   
4. my mp4 player isn’t in my bag. where          i have put it?
a. can  b. must  c. should  d. would  
5. 一what does the sign over there read?
一“no person ______ smoke or carry a lighted cigarette，cigar or pipe in this area.”
a. will      b. may      c. shall      d. must   
6. i told your friend how to get to the hotel, but perhaps i       have driven her there.
a. could  b. must  c. might  d. should   
7. --- my cat’s really fat.   --- you ______ have given her so much food.
  a. wouldn’t       b. couldn’t    c. shouldn’t     d. mustn’t