问题
选择题
Mr. and Mrs. Smith _____ busy _____ their housework. [ ]
A. is, with
B. are, with
C. is, do
D. are, do
答案
答案：B
搜题请搜索小程序“爱下问搜题”
Mr. and Mrs. Smith _____ busy _____ their housework. [ ]
A. is, with
B. are, with
C. is, do
D. are, do
答案：B
