[ Grammar ]
Ostriches are —- of living birds, attaining a height from crown to foot of about 2.4 meters and a weight of up to 136 kilograms.
A. large, strong
B. large and strong
C. larger and strong
D. the largest and strongest

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Vocabulary › ViewWhat vocabulary word BEST completes the following sentence:
A common________________ I hear at school is “I don’t know!”
A. phrase
B. necessary
C. purpose
D. outcome
Grammar › View
What do you see?
A. I see a iguana.
B. I see an iguana.
A group of scientists are travelling around Africa. How many countries _____ so far, I wonder?
A. have they been visiting
B. do they visit
C. they have visited
D. have they visited
Degrees of Comparison › View
Jane is ………………. Snow.
A. As white
B. More white than
C. Whiter
D. As white as
