.Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.
We all congratulated Jack _______ the English test.
—Kate really upset Granny. —I’m sure she didn’t ________.
Our new English teacher ________ my own sister this term, which is quite beyond my expectation.
It suddenly _______ to me that I should call him up to make an appointment with him. happened taken place occurred came about
Americans of all religions _______ Thanksgiving, a happy holiday on the fourth Thursday of each November.