He old woman had a letter from her son in the army_____ to her.
Simply learn to live in the present, ________ think so much about the future or the past.
--- How much shall I pay for the phone call? --- You ________. This is free of charge.
Mary, stop to have a rest. You _________ the flowers in your garden for nearly two hours.
--- What’s that noise? --- Oh, my God! I ________ to turn the tap off after I brushed my teeth.
Though our city has a good public transport system, _______ private car is becoming _________ popular means of transport.