Tom was searching hard in the classroom in the ___ of finding his lost exercise book.
Kimi is ________ that everyone wants to play with him.
--- Why do you look so upset? --- There are so many troublesome problems _________.
By now, more than 100 photos ________ back to the earth by Chang’e-3.
The famous actor is familiar ________ us, but it is a pity that he is not familiar ________ me no matter how deep I love him.
Jack left ________ message for me, saying he was in ________ trouble.