The reason ________he told us for his absence was ________ he was knocked down on the wayto school[ ]

I don’t think it is a good way. Can you another one

Have you known DrJackson for a long time? — Yes, since she _____ the Chinese Society[ ]

Not only ______ the book, but he remembered what he had read.[ ]

Lucy had few close friends. So she didn’t know ________ about the trouble.