—Where is our English teacher?—She is in the classroom, ________ the exercises _________ the students have done at home.
Only when your identity has been checked _________.
Don’t just sit there ________ your legs; come and help me carry the box upstairs.
_____ to sunlight for too much time will do harm to one’s skin.
—What clothes should we wear to attend the ball? —Dress ________ you like.
How many nationalities ______ our country ______?