—How do they ____（relax） on Sunday?—They often sing some songs and dance.
问题描述：
—How do they ____（relax） on Sunday?—They often sing some songs and dance.
答
—How do they relax（relax） on Sunday?—They often sing some songs and dance.
因为主语是they,是复数
所以谓语动词用relaxTurn left on the first turning还是Turn left at the first turningTurn left 【at】 the first turningat比较好