This is a new pen _______ her birthday. [ ]
The clothes made of animal fur look nice _____ Millie’s mother.[ ]
The supermarket is crowded（拥挤的）. There are ___________ people there.—Yeah, and the things there are always ______________ expensive（贵的）.
Generally speaking, my grandmother is nice and kind, but she _______ be very stubborn at times.
It’s time _____ class. You must _____ the classroom.