It was last year _____ I visited the museum _____ you had visited.
Asweallknow, typingisa___jobtoa__ heart. A tired ,tired B. tired ,tiring C.tiring,tired D. tiring,tiring
Among the competitors, there are three little girls, is Mary.
The Great Wall travels______ deep valleys, _____ deserts and______ mountains.
Was it at the school gate, if I may ask, _______ you met your friends from your hometown?
China recently control its waters near the HuangYan Island to prevent Chinese fishing boats from ____in the South China Sea