【推荐1】When ________(study) these, he asked himself the question of how different species ________ (come) to exist. （所给词的适当形式填空）

【推荐2】单句语法填空
1. Natural gas is another abundant fuel that experts consider an alternative _______________ gasoline.
2. The president commanded that all the information _______________(send) to him right away.
3. One day, when I opened my book, I found a beautiful card _______________(attach) to the first page, giving me best wishes.
4. She is deaf, but refuses to let her _______________(disable) prevent her from doing what she wants to do.
5. A new series of simple English reading _______________(material) for middle school students has come out this year.
6. Having realized that your time is _______________(limit), you’ll have to study for your goals without anger and hesitation.
7. With her dad’s _______________(permit), she spent the next two years researching online and conducting trials to get a recipe that was both tasty and tooth-friendly.
8. Not only the coach but also the children _______________(be) fond of playing football.
9. They _______________(blow) the horn, which signaled the end of the game.
10. Michelle found a job as a high school teacher which involves _______________(spend) quite a lot of time with students.

【推荐1】Tao Xingzhi ________ (devote) his life to the educational cause of the motherland. (所给词的适当形式填空)

【推荐2】This new evidence ________(confirm) that he is lying. （所给词的适当形式填空）

【推荐3】Apple fans are ________(queue) outside the store to buy the new Apple iPhone 6 which will be on sale tomorrow.（所给词的适当形式填空）