Questions 17—20 are based on the following passage you will hear You now have 20 seconds to read Questions 17—20. How many children currently live only one parent in the U.S.
A、Oneinthreechildren.
B、Oneinfourchildren.
C、Oneinfivechildren.
D、Oneinsixchildren.
发布时间：2024-10-01 20:42:23
