选择正确的答案,把字母编号写在括号里.

选择正确的答案,把字母编号写在括号里.
( )1.Mike should ___ his honework on tine every day.
A.hand in B.hands in C.handing in
( )2.Don't ___ about Tom's study.
A.worries B.worried C.worry
( )3.Mr Li is never late ___ work.
A.for B.to C.go to
( )4.My brother always goes to bed ___ than me.
A.late B.early C.later