You must keep your eyes if you are going to make your trip enjoyable a

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You must keep your eyes if you are going to make your trip enjoyable and worthwhile.
A, opened, to be B, open, to be C, opened, be D, open, /

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举一反三

As is well known, it is Hawking who the theory of black holes.
A, puts forward B, has put forward C, invented

D, raised

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It is important and necessary for us to wash our hands before eating, because we can
disease our bodies with the meals.
A, absorb, into B, take in, to C, suffer from, in D, take, out of

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The computer system suddenly when I was surfing the internet.
A, broke down B, broke up C, broke out D, broke in

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The Group of Eight is an organization the richest countries in the world.
A, is consisted of B, consisting of C,consists of D, consisted of

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After graduation, he his job as a doctor in the countryside.
A, set out B, took over C, took up D, set up

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