1/----Mum ,I always__ in my test.---it doesn't matter.Try to do it next time.

1/----Mum ,I always__ in my test.---it doesn't matter.Try to do it next time.
2/---I bought a watch yesterday.But it doesn't __now.----Why not go back to the shop to change it?
【根据对话情景,写出句中所缺单词的正确形式,每空限一词】
3/----I want to go out .But i can't find the __ of the building.
----Oh,turn left and you'll see it.
4/----Who is the __ of your class?
----Li Ming is.Because he is very helpful and hard-working.【勤奋的】