1 . —Have they found the lost flight?
—Not yet. I’m really ________ the people on the plane.

A．afraid of

B．angry with

C．careful of

D．worried about

4 . 句子改错。
1. Sit on the floor is safer.                                               (          ) _______
A        B     C          D
2. Be very carefully of the dog.                                      (          ) _______
A             B                 C   D
3. You should tries to keep calm.                                      (          ) _______

A       B        C     D

4. Children have return to normal life.                              (          )   _______
A                  B     C          D
5. Here are the news from Beijing.                                (          )       _______

A     B        C             D

5 . —What do you want to say to the teenagers?
—________ what you say and do. People should be responsible for their behaviors.

A．Be good for

B．Be careful of

C．Be angry with

6 . Be c________ of the cars when you walk in the street.

7 . 小心那只碗。里面装满了热水。（be careful of）
_________________________________

8 . Be careful ________ (of, with) my glasses. It is easily broken.

9 . When earthquakes happen, ________ falling rocks.

A．be careful of

B．be afraid of

C．be sure of

D．be terrified of