B. to sell 是动词不定式,“be busy” 后不接动词不定式,因此 B 选项错误。C. sells 是 sell 的第三人称单数形式,同样不符合 “be busy” 的用法,所以 C 选项错误。D. selling 是 sell 的动名词形式,符合 “be busy doing sth.”,即“be busy selling clothes” 表示 “忙于卖衣服”,此选项正确。
Megan Cerullo Edited By Anne Marie D. Lee Updated on: January 17, 2025 / 9:09 PM EST/ CBS News SCOTUS upholds TikTok ban unless parent company sells it Small businesses and content creators are bracing for impact if TikTok goes dark this weekend after the Supreme Court on Friday upheld ...
SCOTUS upholds TikTok ban unless parent company sells it SCOTUS upholds TikTok ban unless parent company sells it 02:26 Small businesses and content creators are bracing for impact if TikTok goes dark this weekend after the Supreme Court on Friday upheld a law banning the app unless it is ...