There are as many as five student clubs in our school. You can join _____ interests you most.
79. I wrote to Mr. Green, _______ him _______ the lost case.
78. The form is very important. Please fill in the form _______ ink not _____ a pencil, Jack
77. Oh, sorry. A lighted cigarette burned a hole _____ my coat, and I have to change another one.
76. He cut the apple ________, and gave the big to his little sister.
75. Taiji boxing is good _____ health, so the old man began to practise it ten years ago and now he is good _____ it.