Could you please give us some advice on ________ English at home —You need to do a lot of reading and listen to English radio programs．

下列各组词语中加点的字注音有两个错误的一项是（ ）

lish class, our teacher often createsan environment _____________ we are given the opportunity to solve problemsourselves.

My mobile phone dropped into the water when I was walking along the river bank.—_________！

Since the sales promotion, all the items _______well