---I think students should be allowed ___ homework with friends.
---I disagree. They talk instead of ________ homework.
A. do, doing B. to do, to do C. to do, doing D. doing, to do
---I think students should be allowed ___ homework with friends.
---I disagree. They talk instead of ________ homework.
A. do, doing B. to do, to do C. to do, doing D. doing, to do
C