Exercise 12. Look at the sentences 1-6 below. Put the words in bold in the correct place on the line. 1. I never have problems with teachers.2. He often studies in the library.3. They are sometimes late for classes.4. We always ask and answer questions in class.5. My sister usually makes a study plan.6. I seldom take short breaks when I study.0% 100% often alwaysExercise 13. Put these time expressions in order.Twice a week Every morning /afternoon /evening Twice a day 1Every Monday Once a year Three times a monthExercise 14. Look at the sentences in Exercise 12 and the grammar box. Notice the position of the adverbs and expressions of frequency in the sentences. Then choose the correct options to complete the rules.1. Frequency adverbs go after/before the verb to be.2. Frequency adverbs go after/before other verbs.Exercise 15. Find and correct the mistakes in sentences 1- 8 below. There is one mistake in each sentence.1. I ˅go always to the library in the afternoon.2. I do sometimes my homework at night.3. I every morning make a study plan.4. I study alone seldom.5. I usually am late for classes.6. Never I get plenty of sleep.7. I look often at my cell phone when I study