9. train Exercise 4: Choose the correct option for each gap in the sentences. 2. Mai's dad usually drives her to school his car. (in/ on/ at/ into) 1..How Dt. does it take you to walk to school? (How long/ How far/ How often right and left when we cross the street. (see/ be/ take/ look) ball games on the beach (play/played/ plays/ 3. We should.. 4. My friends and I like...... playing) the traffic rules, there are no more accident. (keep/ obey/g 5. If people .. from here to the city centre? (length/ distance/ width/ dept do something. (can/ can't (warn you/ prohibit you/ inform you of something (prohibi catch) 6. What is the 7. The traffic signs with red circles mean you.. must/ should) 8. The traffic signs in blue are usually to you stop you) 9. The traffic signs in the red triangles usually wam/ inform/ prevent) the correct groups. giúp mik