The hind wings of red and yellow underwing moths function in a way that is most similar to_______ .




A.the hind wings of peregrine falcons
B.the zigzag flight of European hares
C.the colored patches on frogs
D.the clicking of grasshoppers

All of the followings are mentioned as characteristics of "flash" behaviour EXCEPT_______ .




A.brief conspicuous activity
B.immobility
C.bright body markings
D.aggressive fighting

The description of the prey's movement as "zigzag" suggests that the movement is _______ .




A.reliable
B.fast
C.constant
D.unpredictable

_______(13)




A.when people get older
B.when the older people get
C.the older people get
D.the old people get

_______(8)




A.people
B.people who
C.they
D.everyone who

A.because
B.become
C.beneath
D.beggar

Rewrite the following sentences, beginning each sentences with the cues
I'd like to have more time to study, but I haven't




A.I wish I had more time to study
B.I wish I have more time to study
C.I wish I had had more time to study
D.I wish I would have more time to study

"What do you think of the book?" -" _________."




A.That's right
B.No, it not
C.It's right
D.Oh, excellent

His grandfather died ___________ the age of 90.




A.in
B.of
C.on
D.at

The old manager has just retired, so Tom takes ___________ his position.




A.in
B.on
C.up
D.out