As many as nine European countries want to—and in some cases are—(accept / accepting) the AstraZeneca vaccine.
这个题目考查在不定式和现在分词之间作选择。应选择 accept。
如果没有破折号,就选 accepting,而且前面应是 want to accept。道理很浅显,进行时 are accepting 之间是不能加破折号的。这个破折号意味着把are 与 accepting 隔断了,它们没有关系了。因此这里需要的是 want to accept。这种表达其实是一种省略方式,避免重复。用破折号借用同一个动词,但使用不同的形式。去掉破折号,句子是:
As many as nine European countries want to accept and in some cases are accepting the AstraZeneca vaccine.
这种情况,在考试中不宜命题,意义不大。