I. Complete the second sentence so that it means the same as the sentence before. 1. Global warming has caused many natural disasters. Many natural disasters______________________________________ 2. After she had explained everything clearly, we started our work. Before we____________________________________________________ 3. I can’t come because I have to help my dad with something. If I___________________________________________________________ 4. Although he took a taxi, he still arrived late for school. In spite of_____________________________________________________ 5. “I am going to join the Science Club.”, said Nam Nam said___________________________________________________ II. Rearrange the words/phrases to make complete sentences. 1. had / better / rubbish / on / We / streets. / not / throw / the ________________________________________________________________ 2. Our car / by / a mechanic / will / tomorrow morning. / be / serviced ______________________________________________________________ 3. been / ever / an / you / English / Have / speaking / to/ country? ______________________________________________________________ 4. lots / grammatical mistakes / in / I / my / writing. / made /of ____________________________________________________________ 5. was / a / There / lastnight. / in / typhoon / Nam Dinh province ______________________________________________________________ III. Make sentences using the words and phrases given. 1. They / asked / whether / there / be /water / Mars. ________________________________________________________________ 2. What / happen / if / we / not / save / natural resources? _________________________________________________________________ 3. Thanks to / progress / science and technology, / human life /change / better and better / recently. _________________________________________________________________ 4. New York / be / biggest / city / the USA, / but / not / the capital. _________________________________________________________________ 5. Noise pollution / big cities / can / lead / hearing / problems.