Each of these sentences contains 1 mistake. Find and correct them.
Either William or his brother have to do this.
A.either
B.or
C.have
D.to do

Each of these sentences contains 1 mistake. Find and correct them.
It is hoped that the develop countries will be less selfish in their economic policies and help the poorer nations.
A.develop
B.less
C.economic
D.poorer

A.ETs
B.aliens
C.Martians
D.extra-terrestrials
E. invaders
F. UFOs

_________(6)
A.that
B.running
C.surface
D.soil

________(8)
A.which
B.that
C.high
D.running

Most people who live in apartments are urban dwellers.
A.of a village
B.of a city
C.wealthy
D.famous

They extended the road for ten more miles.
A.lengthened
B.repaired
C.planned
D.constructed

It is risky to climb to the top of that tree.
A.unusual
B.normal
C.dangerous
D.brave

A.fountain
B.contain
C.remain
D.maintain
E. attain
F. obtain

There was no_____ in waiting longer than half an hour so we left.
A.good
B.point
C.worth
D.use