He was busy ____ his homework.
A: doing
B: to do
C: that he was doing
D: he was doing
A: doing
B: to do
C: that he was doing
D: he was doing
举一反三
- Can you imagine _________? A: what his doing B: What is he doing C: what he is doing D: he is doing what
- He went on __________his homework in his room after supper A: to do B: did C: doing D: done
- He _____ his homework when his mother came back yesterday evening. A: was doing B: is doing C: did D: does
- What ___ he ___with our parents? A: do;doing B: does;doing C: is;doing D: is;do
- Dave is a good boy and he always finishes _( )_____ his homework on time. A: do B: did C: does D: doing