1. You should/ have to/ need ask him for held. He is very easy-going and helpful.

2. Should/ Must/ Need I lend him some money? He looks miserable but I don't know much about him.

3. We can/ should/ have to finish the assignment before tomorrow. Otherwise, we will get zero for it.

4. Despite/ In spite of/ Although I am not really fond of traditional music, listening to it is quite relaxing.

5. The younger brother is well-behaved. While/ But/ Meanwhile, the older one is rather stubborn.