________ London many times, but he knows little about the city.
-Who were those people with the banners? -A group _____ itself the League For Peace.
The foreigner tried his best, but he still couldn't make his point _____.
Mr. Wang has two _____ sons; one has got married and the other has gone abroad.
The workers are pouring _____ steel into the model.
The television is a _____ machine.