Exercise 1: Put the words containing /sk/ or /sp/ or /st/ in correct columns:
/sk/: skirt, schedule, sky, cracks, sculpture, skis, scholarship, scanner, disc, packs.
/sp/: clasp, spy, amosphere, special, spouse, phosphate, spark, hospital, speak, space, spill.
/st/: ancestor, stuck, stand, cyclist, stain, least, request.
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Xin hay nhất ạ!!!