题目内容
( )1. 一 What Mary and Sara_?
—-They are playing the guitar.
A. do; do B. are; do
C. are; doing D. does; do
C
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题目内容
( )1. 一 What Mary and Sara_?
—-They are playing the guitar.
A. do; do B. are; do
C. are; doing D. does; do
C