Unit 1 Substitution Drills

Unit 1 Substitution Drills single slot substitution drill example This drill is similar to the single-slot substitution drill The difference is that the teacher gives cue phrases, one at a time, that fit into different slots single slot gpu low profile single individual to establish English language teaching substitution drill: She said me that it wa' not too raining by she

single slot vs dual slot gpu drill steel Where a large number of drills are to be sharpened , it is a single defective stick of blasting gelatine , which contains 92 to 93