III. Choose the best option to complete the following sentences
1. We............................................each other since we were here.
A. know B. have known C. knew D. will know
2 . Sam burnt....................when she cooked dinner.
A. yourself B. himself C. herself. D. itself
3. Secondary students are not............................................to ride the motorbike.
A. so old B. too old C. very old D. old enough
4. I haven’t finished my homework ………..
A. already B. sure C. just D. Yes