He promised to come, but he hasn’t ______ yet.

Dad, can we move into our new house now–No, it ______. The decoration has not been finished yet.

What can I do for you—I want _______ iPad for my son. He needs _______.

His proposal is very _____. We do not need any explanation.

s world is changing rapidly, making_____ necessary for us to continue learning otherwise we can’t keep up with thetime.