问题
选择题
—What _______ you ________ ? —I'm doing my homework. |
A. do; do B. are; do C. are; doing D. can; do |
答案
答案:C
—What _______ you ________ ? —I'm doing my homework. |
A. do; do B. are; do C. are; doing D. can; do |
答案:C