1.Jim's parents _______ engineers.

1.Jim's parents _______ engineers.
A.are both
B.both are
C.are all
D.all are
2.“How about going for a walk with us?"
"I wish I could,_______ I have to finish my homework first."
A.and
B.so
C.but
D.or
3.句型转换
Jill has to (help his mother to do the housework) at home.对括号内进行提问
_____ _____ Jill _____ _____ _____ at home?