The number of students __________fifty.A. is B.are C.be
—I’m so sorry. —________here on time next time, or you'll be punished.
Last Sunday, we visited the factory _____ my father ever worked for four years.
--- I get on well with my parents now. Better than I _________. --- Really? I’m glad to hear that.
--- How many students in your school have lunch at home? --- Only ________ of us have lunch at home.
--- Can you wait for me for another two hours? --- Sorry. Two hours _____ too long, I will go without you.