---Let’s go to Taishan Park tomorrow morning.--- Sorry, I can’t go with you. My mother is ill and I must ________ her.
–Look at the clouds , so beautiful ! – Wow , so many different ______ , horses , sheep , flowers…
This is my ___________ second time to come to Beijing .
Japanese can hardly avoid_______ products _____in China.
Only then______ have a chance _____ an astronaut.
After he finished reading that book, he continued _____ an interesting football match.