单项选择题
A．has been repaired B．is repairing C．is repaired D．is being repaired
That tree looked as if it（）for a long time. A．hasnt wat...
单项选择题That tree looked as if it（）for a long time.
A．hasn't watered B．didn't water C．hadn't been watered D．wasn't watered
I wonder if I can ask him（）time. A．four B．fourth C．the ...
单项选择题I wonder if I can ask him（）time.
A．four B．fourth C．the fourth D．a fourth
Such electronic devices（）are used in a radio set are al...
单项选择题Such electronic devices（）are used in a radio set are also found in a computer.
A．which B．that C．what D．as
