english

>>Jack always goes to a karooke bar
應該是"the karaoke bar"。
>>My fater sometimes goes to fishing
"to"之後動詞是不會加"-ing"的，如果你想表達父親有時去釣魚，應該是"My father sometimes goes fishing"，當然，"My father sometimes goes to fish"也一樣可以。
>>Kitty usually does voluntary work
沒有問題。
>>My mother visits a museum once in a while
"a museum"不對，"the museum"才對。
>>I sometimes play online games
沒有問題。
>>Peter usually goes camping
沒有問題。
>>John always cooks for mother
沒有問題，但一般都會指明是誰的母親，例如："his mother"。
>>I always clean the room
沒有問題。
>>My fat(h)er often goes hilking
沒有問題。
>>Alan always visit grandparents.
"grandparents"前應該要加上"his"。visit要加s，因為"Alan visits"。

1.Jack always goes to a karoke bar (correct)
2.My father goes fishing sometimes.
3.Kitty usually does voluntary work (correct)
4.My mother visits the museum once in a while
5.I sometimes play online games (correct)
6.Peter usually goes camping (correct)
7.John always cooks for his mother.
8.I always clean the room (correct)/
9.My father goes hiking often.
10.Alan always visit his grandparents.