1) done
2)couldn't
3)changed
4)felt
5)was
6)didn't know
A-3
B-5
вроде так должно быть
<span>1. Why can you understand it? It's so easy.
2. You need not have bought the meat: we have everything for dinner.
3. May I offer you something to drink?
4. He must not drink alcohol when he drives.</span>
A1. <span>3) declaration
</span>A2. <span>1) a planet
</span>A3. <span>2) to
</span>A4. <span>4) There are four oceans on the Earth.
B1. </span><span>) the sea 3) the country 4) the Sun
</span>C1. T<span>he star group is called the Galaxy.</span>