The biggest whale is ___ blue whale, which grows to be about 29 meters long—the height of _____ 9-story building.
The children were surprised by the sudden _____ of their teacher.
—Do you think we can get there on time? —Yes,_________ the bus does not break down.
_________,they’ll carry on the work until they can get the money they need.
Every minute should be _________ lessons.
_________ that it’s very cruel to kill wild animals for money.