11 .He spent lots of time doing this experiment.
= It took …………………………………………………………………………
12 .It took me all the morning to prepare for lunch.
= I spent ............................................................................................................
13 .Anna spent three days visiting VN.
= It took.........................................................................................................
14 .It took my son three years to study in this college.
= My son spent .............................................................................................
15. .I spend two hours doing my home work everyday.
= It takes ...........................................................................................................
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