问题补充：
We have a lot of homework. We are very busy today.
A. to do
B. doing
C. to doing
D. do
答案：
(答案→)A. to do
B. doing
C. to doing
D. do
解析：句意：我们有很多作业要做。我们非常忙。have sth to do.有某是要做。故此处用动词不定式to do.故选A。
如果觉得《We have a lot of homework. We are very busy today. A. to doB. doingC. to doingD. do》对你有帮助，请点赞、收藏，并留下你的观点哦！
