To succeed in a scientific experiment ____

To succeed in a scientific experiment _____ .

#98179

carefulness is need

carefulness is one needs

one needs to be careful

one need being careful

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Have you dreamed about       such a good chance for further education abroad?

#96898

there is

there being

there to be

there will be

Since the baby milk powder was found to be polluted, there has been universal doubt _____ other food products are safe _____.

#89818

that; to eat

whether; to be eaten

whether; to eat

that; to be eaten

We still remember once _________ round the famous tower when we were young.

#90730

having taken

to be taken

having been taken

to have taken

Friends are like leaves, ________ everywhere, but true friends are like diamonds, precious and rare.

#92483

found

finding

to find

being found

While listening to the concert, the audience is required to remain ______ and keep quiet.

#93668

seated

to be seated

seating

to seat

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