I ______ go to bed until I ______ finished my work.
a. don’t/had b. didn’t/have c. didn’t/had d. don’t/have
相关试题
. The company’s profit drop ____ in the last three months of 2009 due to the financial crisis.
A. narrowly B. sharply C. roughly D widely
. There ____ be a flight for Kunming this evening, but you’d better find 
it out for sure.
| A．may | B．must | C．should | D．will |
Though ____ many times, the song still sounds as nice as before
| A．it was heard | B．hearing | C．heard | D．to be heard |
. ---I don’t believe you’ve already finished reading the book.
---I ___ it to you this morning.
| A．would lend | B．was lending | C．had lent | D．lent |
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