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【題目】Miss Liu wanted to encourage ______________students to read famous books, so she showed them a humorous story.

【題目】Artemisinin (青蒿素) was first________ by Chinese scientist Tu Youyou in the 1970s.

【題目】After making the ______________, the two businessmen shook hands.

【題目】Listen! Tom ______________in the classroom. How beautiful his voice is!

【題目】How much should the woman pay in total?

【題目】Whose pen is it?

【題目】Extreme sports such as rock climbing can be very dangerous, so we________ be too careful.

【題目】About ________ of the earth is covered with water, but more and more water has been polluted.

【題目】What was Linda looking for?

【題目】Tik Tok (抖音) has some advantages over traditional video, but I’m still ________teenagers spending too much time on it.