【正文】
home and take care of your baby sister. 2. One of your classmates invites you to his or her birthday party, but you want to prepare for the English exam. Task 3 Find sentences with when or while in 1a. 1. While you were enjoying your trip to Mount Tai, I was busy preparig for my exams. 2. I39。 playing basketball running amp。 eating VS. sleeping going on a spring field trip doing homework 1. It was raining ____ I arrived at the station. A. until B. when C. while D. as soon as 2. When he got home, his family ____ supper. A. were having B. had C. are having D. have 3. I was doing my homework ____ the other students were reading English. A. before B. when C. while D. after 4. Anna is busy ______ now. A. enjoy singing B. enjoy sing singing D. enjoy singing 5. I39。 She ___________ with her family in Hangzhou. 2. 他正在忙于制定計劃去遠足。 I _____________________ Tian’anmen Square. 4. 有人在敲門的時候,我正在寫信。 I _______ an invitation ______ her yesterday, but I _______________ it. 6. 你可以幫我算出這次春游的費用嗎? Can you help me to ____________________? is on vacation making a plan to look forward to exploring didn’t accept when knocked at received from work out the cost of this spring field trip 1. Recite SA1a and review new words and phrases. 2. Finish workbook SA. 3. Preview SB. Thank you very much