【判断题】
Some girls is singing in the classroom now.
【判断题】
The girls are studying in the classroom.
【判断题】
They are not water the plants now.
【单选题】
—Good-bye for now. —____.
【单选题】
He is __________ the newspaper right now.
【单选题】
The population of the world ______ still _____ now.
【单选题】
The experiment_________ in the lab now.
【单选题】
The secretary and principal ___ at the meeting now.
【判断题】
She is swimmig in the pool now.
【单选题】
Youd better [填空] now.