-- When did they get down to the job?-- ____.A.Until they left B.Till they arrived C.Since they finished it D.Not until they turned to me 这道题怎么回事 我见过一些解答 很牵强

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-- When did they get down to the job?-- ____.A.Until they left B.Till they arrived C.Since they finished it D.Not until they turned to me 这道题怎么回事 我见过一些解答 很牵强

-- When did they get down to the job?-- ____.A.Until they left B.Till they arrived C.Since they finished it D.Not until they turned to me 这道题怎么回事 我见过一些解答 很牵强
-- When did they get down to the job?
-- ____.
A.Until they left
B.Till they arrived
C.Since they finished it
D.Not until they turned to me
这道题怎么回事 我见过一些解答 很牵强

-- When did they get down to the job?-- ____.A.Until they left B.Till they arrived C.Since they finished it D.Not until they turned to me 这道题怎么回事 我见过一些解答 很牵强
D 对,
A:他们什么时候开始这项工作的?
B:等他们向我请教后才开始的
not...until 表示:直到.才.
A,B是表示一段时间的.
c显然不对.

选D,AB都是持续一段时间,C应用现在完成时 D才是某一点时间

D
--他们什么时候开始着手这个工作?
--直到他们向我求助以后才开始

D
--他们什么时候开始这项工作的?
--他们向我请教后才开始的.
完整的意思是:
They didn't get down to the job until they turned to me.
not...until 是词组 中文意为:直到。。。才。。。

D
你什么才能开始做这项工作?
他们不求我我就不干。(知道他们求我我才干)
turn to sb.指找某人求助的意思

Until,till,since 都表示一段时间。
选d 不过d也怪怪的