1.The bike is too expensive,but now i cannot afford.bike.
a.that expensive a b.that an expensive
2.I did not think the weather was all...hot like this.
a.much b.that c.great
3.What do you think makes him sad?
.the exam.
a.He failed b.His failing c.To have failed
4.Perhaps it will prove.to you in your study.
a.help b.great helpful c.of help