题目内容：

It's a cold, grey Sunday afternoon in March. The British are all working in their gardens. They're digging, cutting leaves and planting new seeds (种子)，By summer, their gardens will be full of bright colours.

The British love their gardens. A British newspaper recently asked people for their opinions about them. Around 70% of the people felt it was important to spend time in the garden, and over 50% of these described gardening as the most enjoyable thing .they ever did.

  Only one in ten houses in Britain do not have a garden. People who live in houses without gardens often rent (租用) land from the government.

At first, only very rich people had gardens. You can still see the gardens around houses with a long history, such as Chatsworth House or Castle Howard. In the early twentieth century, however, gardening became a hobby. People bought different kinds of seeds and plants for their gardens. Although roses, sunflowers and tomatoes are often grown in British gardens, they originally (起初) grew wild in other countries.

Every year, there are competitions for the largest vegetables, but don't expect to win: Britain's biggest carrot is almost six metres long.

1.In summer, British gardens are often ______

A. full of people digging there    B. colorful with different plants

C. too hot for people to work there    D. covered with grey leaves and plants

2.A recent survey showed that ______ of the British felt it important to do some gardening.A. around 70%    B. over 50%    C. only 20%    D. about 10%

3.We can infer from Paragraph 4 that ________

A. seeds were provided for free

B. roses were first grown in Britain

C. gardening is a hobby in the world

D. the owner of Chatsworth House was rich

4.What does the writer mean by the underlined sentence?

A. It is easy to grow big vegetables.

B. It is hard to win the competition.

C. The carrot is much easier to grow.

D. The carrot is his favorite vegetable.