用所给单词的适当形式填空 Listen! He _____ _____ (sing) an English song .
问题描述:
用所给单词的适当形式填空 Listen! He _____ _____ (sing) an English song .
答
is singing
用所给单词的适当形式填空 Listen! He _____ _____ (sing) an English song .
is singing