Our teacher is always busy preparing lessons until 11 o’clock at night,______we students have gone to sleep.

He is a foreignerBut now he on the right of the road in China

The best way to make a kid to be independent is to put him in a position ________ he has no oneelse to refer to[ ]

don’t _____ of your sending your daughter to Britain to study，because she is too young.

If I________everything about Picasso already，I wouldn’t have to read the book.[ ]