A break between classes is very important for students because it ________helps with students' health by doing sports _______improves their social skills by communicating with their classmates.
句意：课间休息对学生来说是非常重要的，因为它不仅有助于学生通过体育锻炼获取健康，还可以通过与同学的交流来提高他们的社交能力。
考查连词辨析。too…to…太……而不能……；either…or…要么……要么……；neither…nor…既不……也不……；not only…but also…不但……而且……。分析句意可知，课间休息不仅有助于学生的健康，还可以提高学生的社交能力，故应用连词not only…but also…。故选D。
A break between classes is very important for students because it ________helps with students' health by doing sports _______improves their social skills by communicating with their classmates.
You'd better make a good plan you take a holiday.
Cooking is an interesting lesson and we can make different dishes ________ we like.
—Would you like to play table tennis with me this afternoon?
—I'd like to. ________ I'm afraid I have no time.
Susan ________Tina are good friends.
Miss Zhao is very helpful. She often helps us ____we are in trouble.
He was so tired that he fell asleep ___he went to bed.
—Which book do you prefer, Harry Potter or Treasure Island?
—Harry Potter, of course, ____I ___ my sister likes it.
Millie’s research paper isn’t up to standard______ she has worked at it for two weeks.
—Don't forget to protect your eyes well______ you take online classes.
—OK. Thank you, Sir.
