（） what would happen, none of them could find a way out.
A: Left wondering
B: Having left wondering
C: Leaving to wonder
D: Having left to wonder
A: Left wondering
B: Having left wondering
C: Leaving to wonder
D: Having left to wonder
举一反三
- The Mom went out, _______ the baby alone. A: left B: leaving C: having left D: leave
- The boy looked at the stranger carefully, ____________ who he could be. A: to wonder B: wondered C: wondering D: having wondered
- —Excuse me, sir. Would you do me a favor?—Of course. What is it?—I ________ if you could tell me how to fill out this form. A: had wondered B: was wondering C: would wonder D: did wonder
- I couldn ’t find my key to the car when________home. A: leaving B: to leave C: left D: having left
- I rushed to the train station only ________ the train ________. A: find; left B: found; left C: finding; having left D: found; having left