Some molecules are large enough ________ (see) under the electronic microscope.
to be seen
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Iwonderifhecouldgetit________(do)beforetomorrow.
he teacher told them since light ________ (travel) faster than sound,lightning ________ (appear) to go before thunder.
Herefusedtotelluswhetherhe________(undertake)thejob.
Matter is the name ________ (give) to everything which has weight and occupies space.
“Have you moved into the new flat? ” “Not yet. The rooms ________ (paint). ”
