Here are two sheets that focus on the prepositions on and in. Each explanation sheet includes explanation of various uses of these prepositions, as well as common phrases that begin with each preposition such as On the contrary, on the way, etc. and in any case, in conclusion, etc.

Preposition - In
Preposition - On

Ask yourself a simple question: Do I read every word of every text in my native language? My guess is that you don't. Unfortunately, when reading in English (or another foreign language) people want to understand every word. Learn how to improve your English reading skills by using the techniques you already use in your own language.

Next, you can use these reading skills in a number of ways to improve other areas of English learning such as pronunciation, grammar and increasing vocabulary.

Reading Tips to Improve Your Pronunciation
Reading Tips to Improve Your Vocabulary
Reading Tips to Improve Your Conversational Skills
Reading Tips to Improve Your Grammar
Reading Tips to Improve Your Listening Skills

The correct answer is: I worked here last year. Understanding the use of tenses is key to using English correctly. Use this tense review to quickly check your understanding, and follow links to resources explaining and providing quizzes on English tenses. This visual guide to tenses will help by providing pictures of when tenses are used on a timeline. There's also a tenses timeline which provides an overview of all tenses on one page.

In this sentence, 'to' is a mistake. The correct version of this sentence is: We met at the cinema. These find the mistake worksheets ask you to find the mistake in each sentence focusing on one grammar point. Answers are provided on the following page:

Have to / Must / Don't Have to / Mustn't
Question Forms
Prepositions of Movement
Prepositions of Place - In, At and On
Homophone Mistakes
Definite and Indefinite Articles - A, An or The
Past Simple or Present Perfect
Present Simple or Present Continuous