Question

The fireman succeeded in saving all the people in the house on fire, _______they knew they were in great danger themselves.

A．because

B．since

C．unless

D．though

Answer 1

D

試題分析：A. because因?yàn)椋ㄒ龑?dǎo)原因狀語(yǔ)從句）， B. since自從（引導(dǎo)時(shí)間狀語(yǔ)從句），C. unless除非（引導(dǎo)條件狀語(yǔ)從句），D. though雖然（引導(dǎo)讓步狀語(yǔ)從句），句意：消防隊(duì)員成功的在著火的房間救了所有的人，即使他們知道他們自己很危險(xiǎn)。根據(jù)句意選D。