《英语自然拼读高效进阶.字母组合A》
Unit 1
bl cl fl Little clouds
Unit 2
br cr fr Friday morning
More Practice 1
Unit 3
gl pl sl Where is my slipper?
Unit 4
gr pr tr dr Princess Tracy
More Practice 2
Unit 5
sp sk sc The spider and the wasp
Unit 6
sm sn st sw Sweetie the snail
More Practice 3
……
《英语自然拼读高效进阶.字母组合B》