将下面的句子单复数互变
1. This is a pencil. (变为复数形式) _________ _________ pencils
2. Is that a tomato? (变为复数形式) ?
3. These are her erasers. ( 改成单数 ) her
4. That is an English bus.(改为复数句子) English .
5. These are some English dictionaries. (变为单数)
English .
6. There is a banana in the picture.(改为复数句)
There __ ___ ___ ____ in the picture.
7. There’s an English book in the desk.(变为复数句)
________ ________ English ________ in the desks.
8. They are oranges. (变成单数形式) It ________ ________ orange.
9. They’re old watches. (变成单数形式)
10. They have some erasers (变成单数形式)
.