By 1898,a bomber was rare and worth______.A.to be saved B.to save C.saved D.savingB为什么不对?

By 1898,a bomber was rare and worth______.A.to be saved B.to save C.saved D.savingB为什么不对? by this time 是什么意思在by this time,a Lancaster bomber in reasonable condition was rare and worth rescuing.中,by this time是什么意思?by this time 还有什么意思吗?over the years是什么意思? a Lancaster bomber in reasonable condition was rare.这里为什么加in By this time,a Lancaster bomber in reasonable coindition was rare and worth rescuing最后rescue为什么是ing 形式,如果说是be worth doing,那么be动词在哪里,只有一个worth doing啊,这到底是怎么理解 在新概念英语第66课当中有这么两句：By this time ,a Lancaster bomber in reasonable condition was rare and worth rescuing.这句如何翻译?还有一句：A long way west of Samoa.这句又如何翻译? in quite reasonable condition什么意思具体点a Lancaster bomber in reasonable condition was rare and worth rescuing这里的reasonable a lancaster bomber 和 a bomber of lancaster 有什么区别啊 还有 a lancaster's bombera lancaster bomber 和a bomber of lancaster 在任何情况下 都可以互换吗? 英语翻译Bomber at C.I.A.Base Had Ties to Jordan Spy AgencyISLAMABAD,Pakistan — The suicide bomber who killed seven C.I.A.officers and one Jordanian intelligence officer last week in southeastern Afghanistan was an asset of the Jordanian intelli Out rushed a missile from under the bomber.变成什么句?Out rushed a missile from under the bomber.变成A missile out rushed from under the bomber.叫作变什么 a Lancaster bomber in reasonable condition is rare里面in怎么理解?表示状态吗? Out rushed a missile from under the bomber. Ahead sat an old woman. 翻译下 Bomber was rare and worth rescuing.为什么要用rescuing 为什么不用 to rescue 为什么不用 rescued her life was saved by a miracle. Miss Baker was awaked by a great basketball was invented by a C_____ doctor He was a man loved by all your brain was eaten by a putting a play which was directed by