你想说“桌子上有一台电脑。”，你应这样说：________A．There is a computer on the desk. B．There is a desk on the computer.
Daming_____ his trousers yesterday. A. washes B. washing C. washed
Yesterday I _____ my bedroom. A. clean B. cleaned C. cleans
选择并改错，把错误的一项圈起来，在句子后来改正。
根据问句找答句。
It was 5 o’clock, My father didn’t come_________.
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