28. The pilot managed to land the plane ______, for which he was highly spoken of.
She ______his number in the phone book to make sure that she had got it right.
You said boys were cleverer than girls. That is _______ I disagree.
With the rapid growth of population, the city______ in all directions in the past five years.
The bell______ the end o f the period rang and we had to stop our discussion.
The question is ______can be put into practice.