Complete the sentences with the correct form of the words in brackets

Complete the sentences with the correct form of the words in brackets.(điền dạng đúng của từ trong ngoặc)
There is a great_________(food) at the market at the weekend. 
He is a_______(help) student. He always helps us. 
Her__________(perform) is good. Everyone likes it very much. 
My mom likes going_________(shop).