[填空题]It is not hard for one (do) ______ a bit of good.

[填空题]It is not hard for one (do) ______ a bit of good.

[单项选择]One must have studied hard before one could succeed in mastering a foreign language.（）
A. 在掌握一门外语之前只有刻苦学习。
B. 不下工夫是掌握不了外语的。
C. 谁肯下工夫，谁就能精通外语。
D. 必须勤学苦练，才能精通一门外语。

[填空题]Because the life in India is generally hard, one of’ the most appealing factors in a marriage advertisement is ______.

[单项选择]It’s hard to alter one’s habits.
A. change
B. develop
C. shorten
D. enlarge

[单项选择]What subject do they feel hard

[单项选择]

Most people have no idea of the hard work. One of the questions that is always asked of me is (1) I became an animal collector in the first (2) .The answer is that I have always been interested in animals and zoos. According to my parents, the first word I was able to say with any (3) was not the conventional "mamma" or "daddy", (4) the word "zoo", which I would (5) over and over again with a shrill (6) until someone, in order to (7) me up, would take me to the zoo. When I (8) a little older, we lived in Greece and I had a great (9) of pets, ranging from owls to seahorses, and I spent all my spare time (10) the countryside in search of fresh specimens to (11) to my collection of pets.(12) on I went for a year to the City Zoo, as a student (13) , to get experience of the large animals, such as lions, bears, bison and ostriches, (14) were not easy to keep at home. When I left, I (15) had enough money of my own to be able to (16) my first trip and I hav
A. many
B. amount
C. number
D. supply