—Did you know any French before you arrived in Washington? —Never ___ it, actually.
—Some people believe that robots will take over the world one day. —What if that is the _________?
The Sydney Opera House, which _________ almost 900 rooms and halls of different sizes, is definitely at the top of our list when we travel to Australia.
In a foreign company, if you have a good command of English, you _________ much more easily.
During the reconstruction of the city, many modern tall buildings went up _________ old shabby houses were torn down.
If I were rich, I should help them out. _________,I can do nothing.