Question

英语高手进啊54 33Teenagers should not be allowed to smoke这句句子中not放

Answer 1

第一句是否定提前,因为情态动词出现,都要否定提前的,should是情态动词.

had better (not) do sth

you'd better try not to be 你做好尝试不要.

try(not) to do sth

尝试不做/做某事