Question

Many scientists say that it’s important for us to have ______ food in our diet.

A．a variety of

B．a great deal

C．a large number of

D．a good many

Answer 1

A

B和C后跟不可數名詞，D跟可數名詞復數， Food為集體名詞。選A a variety of food 為各種各樣的食物。