_______ a book in her hand， our Chinese teacher came into the classroom.

Passengers are permitted ______ only one piece of hand luggage onto the plane.

Thedisappearance of dinosaurs made _______ the evolution and dominance of mammalson the earth

Where is Japan , do you know — It’s ___ the east of China .

To make a cake, we ____ flour, eggs, sugar and milk together. [ ]