Animals _________ to survive in the wild, rather than kept in captivity.
A.should be helped
B.have been helping
C.are helping
D.could be helping

Normal climbing boots slip in icy conditions, so climbers ______________iron plates with spikes , known as crampons, to their boots.
A.should be fixed
B.used to fix
C.have been fixed
D.have to fix

An apple tree _______________ fruit until it is five to eight years old
A.did not bear
B.does not bear
C.will not be borne
D.was not bearing

When he _______ an essay in on time for once, his professor _________ him a look of surprise.
A.was handed - was giving
B.handed - gave
C.hands - is given
D.has handed - would give

Your chances of success in an examination ________ if you __________ the course work thoroughly.
A.enhance - are revised
B.were enhancing - revised
C.are enhanced - revise
D.could be enhanced - would revise

Given Jenny’s rather difficult chararcter, I would be very surprised if she _______ very much, even if her stay abroad takes longer than planned
A.were missed
B.missed
C.was missing
D.were to miss

With so many different things we are_________concerning what is good for our health, we should first of all keep calm
A.being said
B.being told
C.speaking
D.talked to

The guerrillas are trained in special mountain camps. _________believed to be at least ten such camps high up in the Sierras.
A.They are
B.It is
C.There is
D.There are

Understandably, her friends ____________When Julia married someone else after being engaged to John for two years
A.were surprised
B.are surprising
C.surprised
D.Will be surprised

Nobody looked for a better manager because Geoff______________considered the only possible choice
A.would
B.was
C.had
D.has already