다음 중 알맞은 것은?
1. in order ________ in the november issue, all the reports must be sumitted by december.
a.to cover b.to be covered c.to be covering d.to be cover2. they objected to ________ representing our company at the conference.
a.he b.he is c.his d.he will be3. it took three house __________ through customs.
a.went b.to go c.going d.to have gone