Why didn’t you chat with that friendly foreigner just now?— I’d like to, but the trouble was ________ he said was difficult for me to understand[ ]

He said he didn’t regret telling the truthbut felt that he ______ it differently.

The boy doesn’t sing ________ the others, but hedances best of all.

Marry was so excited _____ she received an invitation from her friend to visit Beijing.

The book is _______ that one.