A.Six. | B.Five. |
C.Three. | D.Four. |
A.send messages to each other |
B.find their students’ cheats in exams |
C.stop the students from using their mobile phones |
D.ask the students to hand in their phones before exams |
A.chimps are cleverer than monkeys |
B.only chimps in East Africa can use tools |
C.human boys always learn to write and draw earlier than girls |
D.experts don’t know why girl chimps use tools faster than boys |
A.go into nature |
B.enjoy their school life better |
C.become famous painters and singers |
D.find some other ways to enjoy themselves |
A.①⑤④⑥ | B.③④⑥⑤ |
C.③②①⑤ | D.②③①⑤ |