1.   After a while she began to get the message, but it required a lot of patience.

2.   At the top competitive level it requires a lot of agility.

3.   Basil was quite uncompromising about high standards in Art and required a lot from his teachers, but was encouraging to beginners.

4.   In fact, breaking one of the bonds, by pulling an electron out of it, requires a lot of energy.

5.   Nevertheless, a foot sweep does require a lot of power to prevent it from degenerating into no more than a shin attack.

6.   The latter requires a lot of brainpower, hard work and, sadly it seems, a lot of money.

7.   These kids require a lot of structure and stability.

8.   They require a lot of swimming space, and will suffer if kept in a small aquarium.

9.   A project as big as this requires a lot of financial wherewithal.