Write the word to the definition 1.to allow a secret to be known; give away or sell to the enemy;
2. to make a search, inquire;
3. to put to death according to the law;
4. a trouble or an annoyance;
5. to show the truth of what has been said.

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If Peter HAD COME to my place, we WOULD HAVE GONE to play in the yard.
If Peter HADN'T COME to my place, I WOULD HAVE WATCHED TV.
If Frank’s parents HAD HAD their holidays in summer, they WOULD HAVE GONE to the seaside.
If they HAD HAD their holidays in winter, they WOULD HAVE STAYED at home.
If the fog HAD THICKENED, Harold WOULD HAVE PUT UP the tent for the night.
When I HAD FINISH my work, I WENT to the cinema.
We BOUGHT this book as soon as our mother HAD GIVEN us some money.
When we HAD COME to your place you SHOWED us your present.
I HAD RETURNED you your ring when you ASKED me.
I HAD WAITED for my friend until he CAME from the shop.
My father HAD STARTED writing before the sun ROSE.
As soon as you HAD FINISH your study I PRESENTED you with a new flat.

1London is home to over 300 museums and galleries,isn't it?
2Is London the epicentre of culture and collections in the northen hemisphere?
3Is London maritime museum the world's largest or the smallest?
4What does London investigate?
5Where can you see mosaics and manuscripts?
6What museum in London is one of the greatest and the oldest museum in the world?
7When was the British Museum founded?
8What do the most famous exhibits include?
9Who worked in the reading room of the museum?
10What was the reading room incorporated into?