Question

【题目】There ________ a computer on the desk.

A. are B. have C. has D. is

Answer 1

【答案】D

【解析】句意：桌子上有台电脑。考查there be结构。there be结构遵循“就近原则”，系词的选择，就看离它最近的名词形式，单数名词和不可数名词都用is，复数名词则用are。本句a computer是单数，需用is。根据句意结构，故选D。