In crowded places like airports and railway stations, you __________ take care of your luggage.
________ these experiments were successfully completed would we think of going into humans.
Is there a hospital around _________ I can get some medicine for my wounded hand?
the weather, the sports meet will be held on time.
Mandy, ___ university student from Canada, teaches us ___ history of western art.
I'm sure you'd rather she went to school by bus, ?