单项选择题
A．all year round B．whenever you need nutritious food C．for a greater part of the year D．throughout spring
A．expensive and boring B．interesting and enjoyable C．time-consuming and inconvenient D．neither interesting nor enjoyable
A．vegetables need little care while growing B．vegetables can be grown on almost any kind of soil C．vegetable gardening is an indispensable part of life for urban and suburban people D．vegetable gardening is a good pastime for retired people