Have you finished the book?—No,I’ve read up to_________the children discover the secret cave

The Internet ______it easy to get much newinformation in a short time.

_______ the extreme levels of air pollution, city authorities have started to take measures to quickly reduce pollution levels and protect city dwellers.

Mike,the phone is ringing.Do you want me to answer it?—No,sit still _____ .[ ]

87. I’m sure your parents are _______ with your progress in English study.