Thirty, nurse, serve, circle, surfing, birthday
1) a
2) a
3) b
4) с
5) d
6) d
7) с
8) d
9) c
10) с
11) с
12) с
13)a
14) b
15) b
16) a
17) c
18)d
19) c
20)a
1. The meal isn't usually very expensive.
2. We usually sit here.
3. They sometimes drink milk.
Potatoes are bought by me often. 2. Milk is sold in the shop week by the students. 4. A new concert-hall is built in every town. 5.A mumber of important experiments in this laboratory are made by them 6.The trees are planted every spring. 7. A lot of money were stolen y them from the shop. 8.1 is taught English by M Wilson. 9. All my money are spent usually by me on books. 10. The babies are taken with great care by the young mothers .
10) we want our children to be healthy and happy.