(81) Jack is busy ( ) his homework.
1 looking 2 going
3 doing 4 coming 正解
(82) I go to school ( ) bicycle every day.
1 in 2 for
3 with 4 by 正解
(83) This train runs ( ) Tokyo to Sendai.
1 at 2 by
3 from 4 between 正解
(84) Bob is waiting ( ) Tom.
1 for 2 to
3 at 4 over 正解
(85) I'm ( ) to hear the good news.
1 wrong 2 glad
3 bad 4 good 正解