Pairs of words. 1. a teacher and aprofessor 4. a term and asemester 2. a primary school and asecondary school 5. a graduate in britain and agraduate in the usa 3. a fee and agrant 6. a state school and apublic school task 3. idioms, colloquialisms and other expressions look at these sentences and decide which of the idioms and colloquialisms in bold is correct. in each sentence, there are two expressions which we do not use in english. 1.he gets up early to go to college, and comes home late. i keep telling him he shouldn't buy a dog with two tails / burn the candle at both ends / try to wear two pairs of trousers. 2.sally always does her homework on time and buys the teacher little presents. the other children hate her. she's such a teacher's toy / teacher's jewel / teacher's pet. 3.he'll have to pull his socks up / polish his head / empty his washing basketand work harder or he'll fail his exams. 4.she didn't work hard enough and flunked / splodged / squidged her exams. 5.they didn't go to school, but chased the tiger / emptied their heads / played truantand went fishing instead.