`1.` are/reach
`->` There are + only + N số nhiều + that + V-nguyên thể + (O)
`2.` comes
`->` He là ngôi thứ 3 số ít nên ta dùng V-es/s
`3.` has left
`->` S + have/has + V-ed3/pp + for + place + time + ago
`4.` flies
`->` My grandfather = he là ngôi thứ 3 số ít nên ta dùng V-es/s
`5.` have decided
`->` S + just + have/has + V-ed3/pp +....
`6.` was
`->` S + knew that + N + was/were + too + adj
`7.` to ride
`->` used to + V-nguyên thể
`8.` am attending/was attending
`->` Right now, I + am + V-ing
`->` Yesterday this time, I + was + V-ing
