`Exercise` `17.` `Chia` `động ``từ`` ở`` thì ``hiện`` tại` đơn.` 1. What _____________________ for a living? - He is a government official but he quit his job a few weeks ago. (your Dad do) 2. Where __________________________ from? (new neighbours, come) 3. This cake _____________________ strange. Whats in it? (smell) 4. This medicine _____________________ a new substance (contain) 5. The watch _____________________ to my grandmother. (belong) 6. We _____________________ that the contents of this letter should be changed.(feel) 7. The moon _____________________ round the earth. (go) 8. My father _____________________ everything about cars, but nothing about bicycles. (know)