1. Have already left
2. Have not seen
3. Has she ever been
4. Have you had
<span>1. They were <u>watching</u> the moving particles. </span>наблюдали<span> (</span>частью глагола-сказуемого)
<span>2. The technique <u>employed</u>
uses a single probe. з</span>адействованная, использованная, примененная, употребленная (определение)
<span>3. When </span><span><u>isolating</u></span><span> radium, Marie Curie found other radioactive elements.</span>
изолируя (обстоятельство)
<span>4. The paper <u>discussed</u> concerned the problem of
radioactivity. о</span>бсужденный (определение)
<span>5. This reaction involves the <u>following</u> temperature changes. п</span><span>оследующие (определение)</span>
<span>6. </span><span>Steam</span><span /><span>is</span><span /><span>usually</span><span /><span><u>generated</u></span><span /><span>in</span><span /><span>a</span><span /><span>boiler</span><span /><span>heated</span><span /><span>by</span><span /><span>fire</span><span>. воспроизводится, вырабатывается (часть глагола-сказуемого в
страдательном залоге)</span>
1)I had translated the article by that time yesterday.
2)They had finished their work by the time we came.
3)When the guests came Kate already had cleaned the flat.
4)Tom bought a new watch yesterday as he had lost his old one.
5)The delegation had arrived by last Sunday.
6)We looked through the magazines which they had sent us.
1) It's green.
2) It's purple.
3) It's yellow.
4) It's white.