It is said that over 50 percent of China’s population _________ working in the cities in 2013, so there are fewer and fewer people on the farm now.
——Why is the classroom so dirty?——Sorry, Sir. It _____ yesterday. We forgot to do it.
——Have the police caught the thieves _____ the bank last week?——Yes, they were caught yesterday.
I’m new here. Could you please tell me ________ ?
——Must I park my car behind the building?——No, you needn’t. You _____ park it here.
——TV and computer are so popular these days.——Yes, they can ____ our eyes to the outside world.