<span>1.The results of the reaction were discussed by them yesterday.
2. Sodium salts are </span>prepared <span>from the carbonate or hydroxide by us.
3. The problem is much spoken of by them</span><span>.
4. The lecture will be followed by a</span> discussion.<span>
5. New data will be commented upon by them in </span><span>this article.
6. The experiment was begun by us</span> <span>in the morning.
7. The metals are </span>distinguished by the great affinity for oxygen.
1 are they in the forest?
are they in the forest or in the town holl?
2. Can she take the boxs?
Can she take she toy or the box
3. has he got a baq?
has he got a hat or a bag?
4. is he nine?
is he ten or nine