15 .the tortoise was slow .he beat the hare in the race ( though)
16 she worked very hard. She could not please her step -mother ( however)
17 he hadn’t received any formal training in mechanics .he invented many useful machines ( but)
18 fewer students attend ABE in the summer .the program only offer classes in the morning ( so)
19 sam is ready to she a doctor .she will follow the doctor ‘s orders and feel better son ( and)
#CHÚC HỌC TỐT#