red safe can’t green Can lights wait |
A.You should stretch (伸展) your body before you swim. |
B.But we can’t go swimming in the lake. |
C.You may get sick. |
D.Let’s tell our parents first. |
A.Don’t drink dirty water. It could make you sick. |
B.Don’t leave the school during school hours without asking your teacher. |
C.Don’t touch the fan. You will get hurt. |
A.shouldn’t | B.should | C.likes |
A.You shouldn’t fly kites in the street. It’s dangerous. |
B.You shouldn’t walk your dog here. Don’t forget! |
C.You shouldn’t fly kites at school. You may fall down. |
A.with | B.without | C.from |
A.Do | B.Don’t | C.Must |