--Where does Jack work?
--I'm not sure, but he worked at Motoroal when I last met him, _____.
A. however B.though C.yet D.anyhow


--Did they tell you the final decision of the committee?
--No,they didn't ,but I think I ought to ______.
A./
B.be
C.have
D.have been

______thier ship was sinking,four people lost their lives in saving soldiers from drowning in the river.
A.Once
B.After
C.Before
D.While

"Tom主修英语"怎么翻译?(major)
"他被鱼刺卡到了"怎么翻译?(choke off)

--Where does Jack work?
--I'm not sure, but he worked at Motoroal when I last met him, __B___.
A. however B.though C.yet D.anyhow
有but了重复，所以不能用however
yet多见于完成时，表示轻微转折
anyhow表示无论如何，有点类似于anyway，不符合句意：“我不确定他现在在哪工作，但我上次遇到他时他在Motoroal”
though也表示轻微转折，常用于句尾

--Did they tell you the final decision of the committee?
--No,they didn't ,but I think I ought to _D_____.
A./
B.be
C.have
D.have been
句意：“他们告诉你委员会的最终决定了么？”“没有，但我想我本应被告知。”本该……，用虚拟语气，又是对过去虚拟且为被动（我被告诉），所以用have been (省略了told)

__D____thier ship was sinking,four people lost their lives in saving soldiers from drowning in the river.
A.Once
B.After
C.Before
D.While
句意：在船沉的时候，有四个人为了救援溺水的士兵而失去了生命。
while表示“……的过程中，边……边……”，常引导谓语是持续性动词且为进行时的从句，
once表示“一旦……”，after是之后的意思，before是之前的意思

"Tom主修英语"怎么翻译?(major) Tom is major in English.
"他被鱼刺卡到了"怎么翻译?(choke off) He was choked off by a fish bone.