Nelson Mandela, who was elected ______ president of South Africa in 1994, is generally regarded as______ father of the country.
---We could invite John and Barbara to the Friday night party.---Yes, ? I’ll give them a call right now.
Is this the reason ______ at the meeting for his carelessness in his work?
--- Excuse me, what time is it now?--- Sorry, my watch ________. It _________ at the shop.
My chest ____when I make a deep breath, doctor.
---I think maths is playing a more important part in the new test system. What about you? --- ______. We should be more devoted to it.