When he _______ the door, he found his keys were missing.
A: was opening
B: opened
C: had opened
D: was to open
A: was opening
B: opened
C: had opened
D: was to open
举一反三
- On receiving the letter, he found the letter ______. A: to be opened B: opening C: open D: opened
- ____his eyes when she told him that it was time for them to leave. A: Hardly had he opened B: Scarcely did he open C: No sooner did he open D: He had no sooner opened
- What ______ his mother______ (do) when he opened the door?
- What _____ he _______ (do) when his mother opened the door?
- John was so sleepy that he could he could hardly keep his eyes____. A: open B: to be opened C: to open D: opening