1.Please speak loudly_____I can hear a little better.

1.Please speak loudly_____I can hear a little better.
A.which B.so this C.so that D.because
2._____he is very young,_____he known a lot about science.
A.Though,but B.Becuse,so C.Though,/ D.When,and
3.I'll give her the message____she comes back.
A.till B.before C.since D.as soon as
4.-Is Tom at school today?
-No.He's at home_____he has a bad cold.
A.because B.if C.until D.before
5.Our teacher is very busy,____he often help us with our lessons.
A.or B.but C.and D.though
6.Can you tell me _____ the nearest hospital is?
A.what B.how C.whether D.where