圈出时态标志语,并选择is, are, was, were填空。
1.There ________ a dog under the desk now.
2.There ________ a pear and some apples on the table a moment ago.
3.There ________ some children in the playground yesterday.
4.There ________ some students in the classroom last week.
5.Look, there ________ some orange juice in the glass.
6.There ________ some bread in the fridge just now.