下列物质中，属于有机物的是（　　）

A．CO₂

B．KCl

C．CH₄

D．Na₂CO₃

根据句意用括号内所给单词的适当形式填空。

小题1:Andy jumps even          (far) than any other student in his class.

小题2:Andy is very smart and he always answers questions          (correct).

小题3:        ( Britain ) English “autumn” and American English “fall” mean the same thing.

小题4:Stick your          (finish) picture on the side of the card.

小题5:It’s          (possible) for us to walk 1,000 kilometres in 5 minutes.

(B) 根据句意和汉语注释，写出单词的正确形式。

小题6:Thousands of people          (出席) the meetings last Sundays.

小题7:He is learning drawing because he will take part in the drawing          (竞赛).

小题8:        (物理) is my favourite subject.

小题9:Her face is on the cover of some         (杂志).

小题10:Although I got up a little late this morning, I arrive at school at          (精确) seven o’clock.