some trouble!help me!

some trouble!help me!
The little girl can____herself though she is very young.
A.wear B.have on C.dress D.try on
l can't decide_______.
A.which subject to talk about B.which subject to talk
C.to talk which subject D.which to talk about subject
Some foreign teachers will visit our school_____a______time.
A.in;week's B.after:week's C.in;weeks' Dafter;weeks'
---Mike wants to know if____a hiking trip tomorrow.
---Of course,we will.But if it______,we'll visit the History Museum instead.
The waiter is very kind and h_____.
Look!The cat is jumping______the small table.(prep.)
thank you!