「別解11 It is risky [dangerous] to depend only on one energy source.
[別解 2] Itis risky [dangerous] to use only one energy source.
5
[解答] In our society,
may [might/could] (still) be difficult [hard] for fathers to be as involved in raising
[bringing up]children as mothers (are).
「 解
it
ns that it is difficult for fathers to take part [to participatel in childcare [in