【2013四川南充】— Excuse me, whose book is this? — It ________ be John’s. It hashisname on it. A. must B. need C. can’t
She has been in the city________.
Why don’t we consider________the Great Wall next weekend?
That clever boy regards the problems________challenges.
There are________people leaving the countryside to search________work in the city.
—Where is your English teacher?I’m looking for him everywhere. —He________for some information on the Internet in the computer room.