Fill in the blank with suitable preposition or adverb.Exercise is necessary. Regular exercise can make us healthy and keep us __________ getting sick or overweight.
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Fill in the blank with suitable preposition or adverb.When all the lights had been left far behind him, there was nothing ___________ darkness on either side of the road.
Fill in the blank with suitable preposition or adverb.Some people attributed the decline in the number of cinema audience _________ the popularity of the television and the Internet.
Fill in the blank with suitable preposition or adverb.To me, it's almost impossible to concentrate on work and care_________ a young child at the same time.
Fill in the blank with the word given below. Change the form where necessary. Each word can be used only once.1. A heavy flood caused the bridge to ______; now, no one can cross the river without boats.