While working in the countryside , the students ________ a great deal of knowledge on plant life.
Information has been put forward ________ more middle school graduates will be admitted into universities.
________ she couldn't understand was ________ fewer and fewer students showed interest in her lessons.
It's nearly time for the meeting to start. The manager ________ be here soon.
--Is Professer Smith giving the speech today?--It ________ be him. He is abroad right now.
A left-luggage office is a place where bags ________ be left for a short time, especially at a railway station.