1.   As the lettuce gets older, the leaves become more bitter.

2.   When grown in subdued light, the leaves become greenish-brown or bronze colour with greenish blotches.

3.   The leaves become brown at the edges, and start to waste away.

4.   As it ages, the leek mellows and its leaves become fleshier.

5.   As soon as it resumes growth next spring, it will send up flower stalks, and when it does, the leaves will become bitter.

6.   During protracted spells of mild, windy, rainless weather, tinder-dry leaves become fuel for fires.

7.   In due course, our leaves would become the property of neighbors to the east.

8.   Leaves become dark green, then bronze again in the fall.

9.   Leaf must become the second coming of Dan Marino in releasing the ball.

10.   Otherwise, the leaves become tough and bitter.