They found __________ impossible to finish so much work in such a short time.

It was a difficult time for the relatives of Missing MH370 Passengers when they heard the bad news , but they didn’t ________ hope.

.We didn’t find the Blacks during the lecture. — No one had told them about _____ a lecture.

What’s wrong with my son, doctor?— _________. Just a cold.

Five _______ students from different schools took part in the English contest last Saturday.