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

Although punctual himself, the professor was quite used（）(習(xí)慣了學(xué)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.

Over a third of the population was estimated（）(無(wú)法獲得) to the health service.

I（）(將在做實(shí)驗(yàn)) from three to five this afternoon.

Why didn’t you tell me you could me the money? I（）(本來(lái)不必從銀行借錢的）

The sports meet originally due to be held last Friday（）(最終因天氣不好而取消了).

（）(正是由于她太沒(méi)有經(jīng)驗(yàn)) that she does not know how to deal with the situation.

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

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