By and by, _____ go out to contact other people in person, more and more people tend to socialize with others via electronic devices.
Mr. Wang, who _____ in this city ever since thirty years ago, _____ a report for the last two years.
— Doesn't this bus go to the park? — ________.
These are all ________houses for the homeless.
— Were you worried about him last night? — Yes. It was ________.
Now that he has missed his ________, he’ll have to wait for the next round.