单项选择题

After they did the experiments, they found _________.

A．both their watches were good
B．neither of their watches could tell the correct time
C．there was something wrong with the German watch
D．there was nothing wrong with the Japanese watch

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热门试题

单项选择题

They did an experiment because they _____________.

A．wanted to know whose watch was better
B．liked their lab
C．wanted to repair their watches
D．had a basin of water in their lab

单项选择题

On reaching the top floor I suddenly realized that I _______my book on the service desk.

A．had forgotten
B．left
C．had left
D．was left