英语翻译a.keep in touch ----------b.in case ----------c.look for

英语翻译a.keep in touch __________b.in case __________c.look forward to __________d.get ...into trouble __________e.a number of __________1.We __________ the return of spring.2.The bookshop is very popular and __________ people go to buy books there.3.It is important to __________ with your parents after leaving home.4.Can you provide me with one more pen __________ this one doesn't work?5.The heavy rain last night __________ the whole project __________.