John received an invitation to dinner, and with his work __________________.he gladly accepted it .
The number of the students in our grade ________about six _______, of them are girls.
We'll be away for two weeks because we'll have a ___________.
.-- Which room shall we live in tonight? – In __________.
There may be something wrong with her ______,she can' t see things clearly.
The room is too small, there' s no enough ________for another desk.