When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.

When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.

#93492

that

this

what

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We liked the oil painting better____________ we looked at it.

#94970

while

the

the more

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#93563

it to be

there to be

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does

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—Were all the supplies for the people carried to the flood-stricken areas?—No,      only some of them      nearly all the roads there cut off.

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they were; because

there were; for

there was; because of

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