Hai điểm M và N gần 1 dòng điện thẳg dài. Khoảng cách từ M đên dòng điện lớn gấp 2 lần khoảng cách tư N đên dòng điện. Biết cảm ứng từ tại M có độ lớn là B= 2.10^-5 . tinh độ lớn của cảm ứng từ tại N

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Exercise 2: Put the verbs in brackets into the correct form (gerund or infinitive): 16 I am looking forward to (see)……………. you. 17. He is tired of (walk)…………………… to school. 18 I arranged (meet)……………………….. them here. 19 He urged us (work)………………….. faster. 20 I wish (see)………………… the manager. 6 It's no use……………………. (wait). 7 He warned her (not touch)………………….. the wire. 8 Don't forget (lock)………….. the door before (go)…………………… to bed. 9 My mother told me (not speak)…………………. to anyone about it. 10 I can't understand her (behave)…………………… like that. 11 He tried (explain)……………………….. but she refused (listen). 12 At dinner she annoyed me by (smoke)………………… between the courses. 13 You are expected (know) ……………….the safety regulations of the college. 14 He decided (disguise) …………….himself by (dress)……………….. as a woman. 15 lam prepared (wait)…………………… here all night if necessary. 16 Would you mind (show)……………… me how (work) the lift? 17 After (walk)……………… for three hours we stopped to let the others (catch with us. 18 I am beginning (understand)………………… what you mean. 19 He was fined for (exceed)………………………… the speed limit. 20 The boys like (play)…………… games but hate (do)…………………………. lessons.