关于英语的几道测试题

关于英语的几道测试题
1、I will go on a picnic with my classmate tomorrow ________
A.Have yourself to some chicken B.it doesn't matter C.I would like to
D.have a good time
2、______ your socks,Jim.Don't put them on the table
A.take on B.take off C.take up D.take away
3、We should spend more time _____ our family
A.for B.on C.at D.with
4、You must be to see doctor if you _____ ill
A.be B.will be C.is D.are
顺便再问一道，half the students 后面用is还是用are？