我的班主任认为我的数学不够好My headteacher thought I ______good _____at ma

我的班主任认为我的数学不够好
My headteacher thought I ______good _____at math
The potato chips weren't crispy（反义疑问句）
The potato chips weren't crispy,_____ _______?
He sprinkled (lots of) salt on the chips.(对括号部分提问）
________ _______ salt did he sprinkle on the chips?