'I shall help you provided you obey me.' Here the underlined word is a/an-

Look before you leap. The word before used in the sentence is— 'He could not win but learnt a lot.' Which part of speech is the word 'but'? 'He is poor but honest.' _ in this sentence which is conjunction? Visit you — I have finished my homework. Give her a telephone number to ring ……… she gets lost. It is health _ is wealth. Water boils _ you heat it to 100° centigrade. I will watch while you sleep. এখানে “while শব্দটি- Tell me _ that. I will write down the phone number ____ I forget