1.Lucy isn't very pretty,but she wants to be_____
1.Lucy isn't very pretty,but she wants to be_____
A.more good-loking B.much good-looking C.good-looking D.most good-looking
2.Without air,you can only live____about five minutes.
A.since B.to C.for D.with
3.You must be_____whwen you stary a fire at home.
A.careful B.careless C.excited D.carefully