Mr. White had no money for the taxi, so hehad to ______ home.

The poet says he wrote this long poem ____ he was still in primary school.

The weather is too cold ____ March this year —It was still ____ when I came here years ago

I can only spare ten minutes for you Could you speak your plan ____? —OKAll right

I’m _______ building a new zoo because I think zoos are terrible places for animals to live in.