Callan New Edition Stage 9 Lesson 128 on page 710 please continue ''Revision Exercise 57'' and start with item # 12. ''How old must you be before you can vote in elections in this country?''.

レッスンで出てきた文法・単語	Revision Exercise 57 (Lessons 118 - 119): •I must be 20 years before I can vote in elections in my country.  •Unemployment is when there's not enough work for everyone.  •No, it isn't always possible to put theory into practice.  •I think grey clothes suit me best.  •Yes, the cars that people drive today are more efficient than the cars of fifty years ago.  •Yes, think regular physical exercise can have some effect on how happy someone feels.  GRAMMAR: •Verb + infinitive or "-ing"  SENTENCE STRUCTURES: •In English, if a verb is followed immediately by another verb,the second verb must be either an infinitive or a gerund
レッスンで利用した教材	CALLAN NEW EDITION STAGE 9
レッスンで利用した教材のページ数	711-712