I used to think Jack was not a man to count on, but I have changed my ______ as he saved an old man from the fire.
_____ is known to everybody is ____ the moon travels round the earth once a month.
Tom ____ desperate in front of the locked door.
The science of medicine, _____ progress has been very rapid lately, is perhaps the most important of all the science.
This is the largest clock in the world, _____ the minute hand is six meters long.
Sarah hopes to become a friend of _____ shares her interests.