—________ does your mother go to work?— She often goes there ______ the bus.
________ people________ walking along the beach.
I think Sun Yang was one of _____ in the 2012 Olympic Games.
---Look, the man looks like Green.---It _______ be him, for he _______ to America.
What method can you think of _________ with these broken computers?
I didn’t meet him at the party. By the time I ____to the party, he _____for half an hour.