We have improved, can and will (further) improve students' reading skills.
We have improved, can improve, and will further improve students' reading skills.
anaphora (epanaphora) – the repetition of the same word or group of words at the beginning of several consecutive sentences or verses to emphasize an image or a concept.
ellipsis – the omission of words to avoid repetition, or the omission of words from a sentence or quote
1 when words are deliberately left out of a sentence, though the meaning can still be understood. For example, you may say 'He's leaving but I'm not' instead of saying 'He's leaving but I'm not leaving.'
Ellipsis (three dots) is also used when words are left out of a quote in order to condense or remove less relevant information from the quote “All of us seem to make up our minds … in an instant.”.
2 three points (...) used in writing to show that some words have purposely been left out of a sentence.