1.Look at those black clouds.
Don′t worry,it won't rain.
2.I′ve had a headache all day.I don′t think I can go out tonight.
Just lie down and relax for half an hour
you will be fine.
3.Sardinia is a beautiful island,but we′ve only seen a small part of it
Well,we will see it
next year if you like.
4.Come on.Let′s walk to the beach.
Good idea.It′s not very far,so it won't take long.