问题
选择题
--- Where is Mike now？
--- Look! He _______the classroom.
A．cleans
B．cleaning
C．is cleaning
D．to clean
答案
答案：C
本题考查一般现在时的构成。现在进行时态由be + v-ing构成。
搜题请搜索小程序“爱下问搜题”
--- Where is Mike now？
--- Look! He _______the classroom.
A．cleans
B．cleaning
C．is cleaning
D．to clean
答案：C
本题考查一般现在时的构成。现在进行时态由be + v-ing构成。