IV. Build sentences using the words given. 1. (we/used/ wear/uniforms/when/we/be/schoolchildren.) ..... 2. (he/work/the computer / last night?) 3. (Lien's parents / wait/her/when/she/ get off/plane / this afternoon.) 4. (last summer / we /visit/Ha Long Bay / Cat Ba Island.) 5. (I/ was not / hungry / because /I/ already eat/big lunch.)