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y D. to cry。s important for us to know _________ all the subjects. -Yeah, group work is my favorite. A. how to study B. when to study C. which to study D. what to study 12.(2015廣東).We advise parents _____ their children at home alone in order to keep them away from danger. A. not leave B. not to leave C. leave D. to leave 13.(2015上海)My friend invited me ______ the art club , and I accepted it with pleasure. A) join B) to join C) joined D) joining 14. (2015山東東營(yíng))Could you please teach me ______to give out “Red envelope” on WeChat? Sure. Let me show you. A. how B. why C. hen D. where 15.(2015河南) kind and helpful to the people around us, and we will make the world a nicer place to live in. A. Be B. Being C. To be D. Been 16.(2015山東臨沂)What happens when you hear a strange noise at night .or find a big spider in the corner of your bedroom ? It often makes us ________. A. jump B. to jump C. jumping D. jumped 17.(2015廣東梅州)Though he often made his little sister ______, today he was made ______ by his little sister. A. cry。 crying C. cry。 cry 18.(2015廣東梅州)Jane was shy. She would not invite her classmates _______ A. practice B. practices C. practicing D. to practice 19.(2015湖南郴州)Don’t forget_________ it to me when you finish reading the book. A. to bring B. bringing C. bring 20.(2015四川南充)It’s necessary for us ______ English well. A. to learn B. learning C. learn D. learns 21.(2015湖南衡陽(yáng))Our teacher tells us ______on the street because it’s too dangerous. A. not play soccer B. not to play soccer C. to not play soccer 22.(2015四川內(nèi)江)In this school, the students are asked ______mobile phone. A. not to use B. not using C. not use D. to not use 23.(2015山東青島