教授

I don't know whether the professor have call the roll or not.

我不知道教授是不是已经点了名？

I don't know whether professor has made the roll call.

我不知道教授是不是已经点了名？

I don't know the professor call the roll or not.

我不知道教授是不是已经点了名？

I don't know if the professor had the roll call or not.

我不知道教授是不是已经点了名？

I don't know whether the professor call the roll or not.

我不知道教授是不是已经点了名？

I do not know whether the professor call the roll

我不知道教授是不是已经点了名？

I do not know if the professor had the roll call or not.

我不知道教授是不是已经点了名？

I don't know whether the Pro. call the roll.

我不知道教授是不是已经点了名？

I have no idea about weather the professor has already call the roll.

我不知道教授是不是已经点了名？

I did not know whether the professer have talked the roll call?

我不知道教授是不是已经点了名？

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。