There a computer and two boxes on my desk. A. is B. are C. has D. have

问题补充：

There a computer and two boxes on my desk.

A. is

B. are

C. has

D. have

答案：

(答案→)A. is

B. are

C. has

D. have

解析：There be句型表示“某地(或某时)存在有某人(或某物)，而并非某地(某人、某物或某时)拥有什么东西”，句中有若干个名词作主语，动词be常与后面主语中的第一个名词在数上一致。have一般表示某人有某物。句意：桌子上有一台电脑和两个盒子。Be动词后第一个名词a computer为单数形式,故选B。