By the time you get to New York, I（）(已經(jīng)動身去) London.

（）(信不信由你), his discovery has created a stir in scientific circles.

It’s time（）(采取措施) about the traffic problem downtown.

Although punctual himself, the professor was quite used（）(習慣了學生遲到) his lecture.

The ship’s generator broke down and the pumps（）(不得不用手工操作) instead of mechanically.

Mark often（）(試圖逃脫罰款) whenever he breaks traffic regulations.

The room is in a terrible mess; it （）（肯定沒打掃過）.

Most doctors recognize that medicine is as much（）(是一門科學，也是一門藝術(shù)).

I（）(將在做實驗) from three to five this afternoon.

Everybody knows he（）（受到了冤枉指控）.