Use the correct form of the words in the boxes to complete the sentences in each group below. You may use some of the words more than once. In some cases, more than one word may be correct Các từ để chọn : explore investigate look for lookup (do) research 1 The police came to ________________________ the murder immediately. 2 I still have________________________ to do for my project on sharks. 3 I must________________________ this word in the dictionary, because I don’t remember what it means. 4 Mum, I’m ________________________ my trainers. Have you seen them? 5 As soon as the five friends got to the cave, they decided to ________________________ it.