How hard could it be to not install wires?1.这样的句式挺不能理解的,如果换成陈述语气,该怎么写?It could not be to install wires.It could be to not install wires. It could be not to install wires.2.例句里的结构 和 下面这样写有什么区别?How hard could it not i...
The policeman came up to the only house with the door _____,____ there for a while and then entered it.( ) A. open; to stand
B. opening; stood
C. open; stood
D. opened; standing 这题选C,不太懂并列谓语的解释,最多可以有几个并列呢?