We were suggested that we ____ attention to protecting wild animals.
It was playing computer games that cost the boy plenty of time that he ________ have spent doing his lessons.
—________ I return the dictionary within three days? —No, you ________. You ________ keep it for five days.
Sir, you ________ be sitting in this waiting room. It is for women and children only.
The train has gone. You two ________ on time.
There was plenty of time. She ________ to the station.