_______(48)
A.to drain
B.drainage
C.drain
D.draining

______(49)
A.survive
B.save
C.reduce
D.increase

_______(50)
A.remote
B.isolated
C.wilderness
D.desert

A.flame
B.hate
C.page
D.adventure

A.helped
B.liked
C.watched
D.hated

A.good
B.book
C.foot
D.food

There (be)............. no guests at all since I left.
A.has been
B.have been
C.were
D.are

In a few minutes’time, When the clock (strike)............... six, I (wait)............... here for three hours
A.strikes - will have been waiting
B.striked - will have been waiting
C.strikes - have been waiting
D.strikes - will wait

She (sleep)................ for 10 hours! You must wake her
A.has slept
B.slept
C.had slept
D.has been sleeping

It is a top secret. You _______ tell anyone about it.
A.mustn't
B.needn't
C.mightn't
D.won't