1 . Children enjoy telling and listening to ghosts stories , especially on Halloween night→ ghost

2 . There was a very interesting news on the radio this morning about the earthquake in Italy→ bỏ a

3 . Helen's teacher had her to rewrite her assignment many times→....mình k biết câu này

4 . Willa Cather is known for My Antonia and another novels of the American frontier→ other

5 . Computers and new methods of communicative have revolutionized the modern office→ communication

6 . Personal taxes for Americans rose sharple since 1945→sharply

1.ghosts  → ghost

2.a → ∅

3.her (her đầu tiên) → ∅ 

4.another → other

5.communicative → communication

6.sharple → sharply