-Is James at home?-No, he __________ Ya'an to be a volunteer.A. has gone to B. has been to C. is going toD has to
---Which do you like ___________ , apples or pears? --- I like pears.
I always go to sleep ___________ the light on.
He finds watching movies ______because the people speak too quickly.
He used to spend a lot of time computer games.
Great changes _____ in my hometown since 1980.