首先：

在形容词+名词单数这样的组合之前，不定冠词a/an是不可缺少的

例如：

He clearly has a good understanding of the issues.

Many students have a part-time job.

此外：

副词在这些短语中的位置也是考生在考试中经常出现错误的地方，应该注意。

例如：

We have a very high percentage of women working in senior government posts.

There was a really good atmosphere.

In my view, this is quite a strong argument.

最后：

一些常见的名词短语考生们也要注意

例如：

to a certain extent/ degree：                           I agree with you to a certain degree.

A wide range/variety:                       We have a wide range of books to choose from.

A(n) Large small/equal umber /amount:                an equal number of men and women

A high/large/small/greater proportion/ percentage:             a small proportion of patients

A long time:                                         I haven’t seen her for a long time.

现在我们再回到最初的题目：

第一组：

• The company has captured a significant share of the market.

• The company has captured significant share of the market.

第二组：

• I think they are also right to certain extent.

• I think they are also right to a certain extent.

这次大家就知道，正确的答案是每组的第二句话，因为他们是常见的名词短语搭配。

亲，不定冠词在PTE写作中的准确用法你get了吗？