The flowers _________sweet in the botanic garden attract the visitors to the beauty of nature.
— Where is my English book?— I brought it to you _____you were in hospital yesterday afternoon.
The nutrients in _____falls into the ocean quickly become available to other living creatures.
Don’t forget where the emergency exits are _____an emergency.
The lake is calm and clear, and one of the things that _____in the water is the famous tower.
The roommates have lived for three years and not once _____with each other.