问题
选择题
—Please come ________ to my house if you are ________.
—Sure, I'd love to. [ ]
A. on, free
B. at, busy
C. over, free
D. of, busy
答案
答案:C
—Please come ________ to my house if you are ________.
—Sure, I'd love to. [ ]
A. on, free
B. at, busy
C. over, free
D. of, busy
答案:C