Question

---What _______ you ________ ? ---I’m doing my homework. A．do; do B．are; do C．are; doing

---What _______ you ________ ? ---I’m doing my homework. A．do; do B．are; do C．are; doing D．can; do

Answer 1

C

本题回答语表示的意思为我正在做作业，是现在进行时的结构be+doing，故问句也要用此结构，故本题选C。