My father spends much money on books, _______ he’s not rich.

____ the pressure from work, teachers have to deal with psychological problems caused by interpersonal relationship.

.The city, which _________ by beautiful scenery, is where I was born

Did Linda see the traffic accident—No，no sooner _______ than it happened.

an to open to the outside world inthe late 1970s.,there have been great changes inthe country.