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

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

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

Everybody knows he（）（受到了冤枉指控）.

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

If this can’t be settled reasonably, it may be necessary to（）(訴助武力).

When I was very young, I was terribly frightened of school, but I soon（）(克服了這種心理).

He wears a pair of sunglasses（）（惟恐被別人認出來）.

It may be necessary to stop（）(每隔一定時間) in the learning process and go back to the difficult points in the lessons.

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