题目内容：

Look,kitty and her friends___(have)a picnic.They__(have) some food.kitty___(have)a packet of
biscuits.But Ben ___(not have) any biscuits.请问横线中怎么填?

优质解答

are having
have
has
doesn't have

追问：

我搞不懂唉，第三个我也填的has,老师批我错，晕。再请教一题： they want ____(swim) now.这是什么时态，请详细一点，多谢了。

追答：

to swim 一般现在时