Question

You need to brush your                    after                   .

A．tooth eat	B．teeth eating
C．tooth eating	D．teeth eat

Answer 1

B

解析試題分析：句意：你需要在吃過飯后刷牙。brush one’s teeth,刷牙。after,介詞，后加名詞或動名詞，根據句意及結構，故選B。
考點：考查名詞復數及動名詞的用法。