Some scientists think that it may take ______ years to make robots look like people, and do the same things as us.

Did you look up the time of trains to Shanghai? —Yes, the earliest train is _____to leave at 5:

Our teacher ____ in our school for 29 years and he ____ here when he was 23 years old.

The familiar English song ______ me of the happy days I spent in the primary school.

I am leaving _________ Shanghai __________ October 14.[ ]