There was a large box behind the door and Peter couldn't _____ falling over it in the darkness.
He spent ________ yuan on the new computer.
___________ travellers come to visit our city every year.
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 __________.