Time was passing and we were getting because we would have to spend the night in the cave if no one came to the rescue.
My brother has always insisted on his __________ Tom instead of Tim.
At the beginning of the class, the noise of doors__________ could be heard many times.
A simple 45-minute operation __________ by scientists is hoped to cure blindness in six years.
__________ in a well-known university is what every-body wishes for.
Taking physical exercise regularly is an effective way to avoid __________ with the flu.