giúp mình với ạ,mình cần gấp :((( Exercise 36: Complete the following pairs of sentences by using "wh-words + toinfinitive". Rachel: Are you going to buy that overcoat? You: I don't know (1) …………………………………………………. to buy it or not. Tom: What time do you think we should leave? You: I'm not really sure (2) …………………………………………………. David: Do you want to do business studies? You: I'm wondering (3) …………………………………………………. business studies or statistics. Rita: How much money should we spend on Tet holidays? You: I have no idea (4) …………………………………………………. on it. Jack: Do you intend to join the English club? I can't decide (5)…………………………………………………. it or not. Mike: Which route should we take? You: It's difficult to know (6) …………………………………………………. Michael: Which level are you going to choose? You: I haven't decided (7) ………………………………………………….