单选题 Improvements of all kinds ______ in television so that reception will be as close to perfect as possible.
A. are constantly being made B. are being made constantly
C. will be being made D. will constantly be made

【正确答案】 A

【答案解析】[解析] 谓语动词题。本句的意思是：电视在各个方面都在改进，以便使接收的效果尽可能完美。谓语动词时态题：are constantly being made constantly意为“不断地”，与进行时搭配意思恰当，且放在第一个助动词和第二个助动词之间，位置正确。