Next, cover the seed tray with paper. When the seedlings have come up far enough to touch the paper, take it off. You can transplant the seedlings into the garden when they are about two to three centimeters tall. Do this when the weather is not too hot and not too cold. Take out as much soil as you can with the seedlings, Then dig a hole in the ground bigger than the lettuce roots. Water the plants but not too heavily.

　　Harvest leaf lettuces when the leaves are big enough to eat. Pull the leaves from the outside of the planting so the inside leaves will keep growing. Or, you can cut off the whole plant. Leave about two or three centimeters above the ground so the plant will re-grow. Cut off head lettuces at ground level.

　　Lettuce is best when served fresh, so make a salad and enjoy. Experts say lettuce is one of the easiest crops to grow in your garden.

　　5. Which of the following shows the right order of planting lettuces?

　　a. Dig a hole in the ground bigger than the lettuce roots.

　　b. Drop the seeds over the surface.

　　c. Water the plants.

　　d. Cover the seed with soil.

　　e. Take off the paper.

　　f. Transplant the seedlings into the garden.

　　A. b, d, e ，f, a, c

　　B. a, b ，c, d ，e, f

　　C. d, e，f, b，a，c

　　D. b，c, d，e，f，a

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