Have you received the books which ______online —Not yet.

Mary is going to Paris by plane soon. She will arrive _______ Paris ______ the morning of July 9th.

Thomas is the very person I think is worth making friends with．

At present, one of the best ways to study is working in groups.—More chances ___________ to students to learn from each other.

In peace, too, the Red Cross is expected to send help ______ there is human suffering.