The twins are so much alike that no one can ________one from the other.
Depend on us, nowhere else __________ a better service.
With a wave of his hand he __________ us that we can set off right away.
In many places of China, __________ bicycle is still __________ popular means of transportation.
—What is his speech about? —As he claims, communication is an effective way to __________ the generation gap between parents and children.
I__________ along the street looking for a place to park when the accident __________.