Liu Xuan is really ________,she is very good at math, physics and chemistry.
--- We just need one of you for the game. ________you _______your brother can join us.
--- Cross the road carefully, __________ you’ll keep yourself safe.--- Thank you.
---Why do you like yellow?--- Because it always reminds me __________ a warm, sunny day.
--- Oh, I hear your favorite film star will arrive in Shanghai next Tuesday.--- _________. He is most likely to arrive this Friday.
_________ a GPS will make _________ easier for you to visit a strange place.