从方框中选择恰当的短语，并用其正确形式填空（每条短语只能选用一次）。 at the same time, at least, plenty of, thanks to, say no to 1. _______ sm oking and drugs! 2 . _______ his teacher’s help, he’s made great progress in maths. 3. According to the writer, we sho uld walk _______ 10,000 steps every day. 4. When farmers are working in the fie lds, they are taking good exercise_______. 5. It’s important to eat _______ the right things such as fruit and vegetables.