Two years ago ,she...........at a village school. (teach) 
I ..............theam at the movie theater last nighet .(not meet) 
We are all ___________ about the final exam. (worry)
There is a wide ____________ of vegetables on display. (select )
PASSAGE 2: Read the passage. Do as request. It is very important to have healthy teeth. Good teeth help us to chew our food. They also help us to look nice. How can we keep our teeth healthy? First, we ought to visit our dentist twice a year. He can fill the small cavities in our teeth. Secondly, we should brush our teeth with a toothbrush and toothpaste. Thirdly, we should eat food that is good for our teeth and our body: milk, cheese, fish, brown bread, potatoes, red rice, raw vegetables and fresh fruit. Chocolate, sweets, biscuits and cakes are bad, especially when we eat them between meals.
27.Having healthy teeth is very important. ______
28.We should visit our dentist four times every year. ______
29.We can keep our teeth healthy by eating a lot of sweets.______
30.Milk, fish, potatoes, fruit are good. ______
31.How can we take care of our teeth?
A. eat sweets B. drink beer C. brush our teeth D. shower
32.How often should we visit dentist?
A. twice a week B. twice a month C. twice a day D. twice a year