I _____ apologize for the convenience.
A: did
B: have
C: do
D: am doing
A: did
B: have
C: do
D: am doing
举一反三
- I'm sorry for what I_____________. A: do B: did C: have done D: am doing
- I won’t leave until I ____ my work. A: do B: did C: am doing D: have done
- I am used to _____my homework at night. A: do B: doing C: did D: done
- Why do I have to break the news to him? I don't feel like it. A: do B: does C: did D: doing
- He is very late, I ________he hasn't met with an accident. A: do hope B: do hopping C: did hope D: am doing hope