请英语高手帮忙看看这几题选什么，各自考的语法点是什么，每题其余三项为什么不选，并翻译一下，谢谢

请英语高手帮忙看看这几题选什么，各自考的语法点是什么，每题其余三项为什么不选，并翻译一下，谢谢
40. E-mail, as well as telephones, ______ an important part in daily communication.
A. is playing B. have played C. are playing D. play
41. She’s so ______ that no one can please her.
A. particular B. simple C. normal D. adventurous
42. First of all, please _____ me to introduce myself to you．
A. make B. agree C. let D. allow
43. — How do you learn English so well?
— ______ it every day.
A. In speaking B. By speaking C. With speaking D. On speaking
44. During the last summer vacation, all the students had plenty of ______ and got a lot of practical ______ in the factory.
A. exercises; experiencesB. exercises; experience
C. exercise; experience D. exercise; experiences
45. —What do you think of the book? —Oh, excellent． It’s worth a second time．
A．to read B．to be read C．reading D．being read
46. —Will Mary go shopping with us this afternoon?
—______. She has to prepare for the coming English examination.
A. Yes B. I’m afraid not C. It’s all right D. Don’t worry