问题:
---How did it _________ that all the flowers died ?
---I had forgotten to water them.
A.come on
B.come up
C.come about
D.come along
---How did it _________ that all the flowers died ?
---I had forgotten to water them.
---I had forgotten to water them.
A.come on | B.come up | C.come about | D.come along |
参考答案: