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Exercise 4: Fill in each blank with a suitable question word: how, where, what, who, when...
1. I don't know ________ to deal with this problem.
2. My sister wondered ________ to buy the best cakes.
3. Could you tell me ________ to do to get on well with my new neighbours?
4. They asked ________ to take out the rubbish, at 5 or 6 p.m.
5. He can't decide ________ to give his books to.
6. My classmate didn't understand ________ to do.
7. My neighbour asked me ________ to use the dishwasher.
8. They don't know ________ to preserve the natural beauty of their region.

Exercise 5: Fill in the blanks with when, where, what, or how... to complete the sentence but I don't know ________ to make!
1. I have so many ingredients, I don't know ________ to live.
2. This city is so expensive, I don't know ________ to propose.
3. I want to marry my girlfriend, but I'm not sure ________ to do!
4. Help! My room is infested with ants. I don't know ________ to do!
5. Help me decide ________ to go on vacation.
6. Do you know ________ if you are stung by a bee?
7. My husband and I are so busy these days, we don't know ________ to celebrate our anniversary.
8. I want to speak better English, but I don't know ________ to do that.
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