蓝液压系统在___加液压油？

He spoke in a quiet, distinct voice, as though his thought _____

If it ___ tomorrow, what would we do?

If it ___ rain, we ___ get wet.

It is required that you ____ at six.

If he had not gone out in the storm _____.

The boy acted ____ he had never lived in Canada before.

He demanded that the laboratory report ___ immediately after the experiment was done.

He is not ___ a fool ___.

A steel plant is a place ___ I am longing to visit these years.

Do you know who lives in the building ___ there is a well.