. ______ is no possibility _____ Jack will win the first place in the competition.

So difficult _____ it to adjust to an English-speaking environment that he determined to learn English hard.

The article is ________ more difficult than that one, so I think I can understand it with the help of a dictionary.

______ do your family usually have dinner? —At 7:00 p.m. [ ]

It is difficult to judge whether what he said_________.