Tomisapromisingstudent.Iamsurethatwithhis    effort，hew...

問題詳情：

Tom is a promising student.I am sure that with his     

effort，he will make a very successful scientist.

A．usual                           B．constant

C．content                         D．normal

【回答】

B

知識點：形容詞

題型：選擇題