Exercise on Present Perfect Tense

Exercise on Present Perfect Tense. Fill in the gaps with the right forms of the verbs in bold at the end of the sentences in Present Perfect Tense. Remember to use the correct forms for the third person singular!
1 She all the tort that was left. eat
2 He more harm than good. do
3 She her lips. bite
4 Where their documents? they hide
5 I about it since yesterday. know
6 The wild geese away. fly
7 The two sisters apart. grow
8 Somebody my mobile. steal
9 The river and we can cross it easily. freeze
10 We for over two hours. sing