Modals- Permission and Request
We ________ not get into the concert without tickets, so we went home.
Either could be used here.
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Grammar Test - Abbreviations 
Grammar Test - since/for 
Grammar Test - Comparatives 
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Grammar Test - Phrasal Verbs - Go 
Grammar Test - wish 
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Grammar Test - Futures 
Grammar Test - Which conditional 
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Practice making eye contact with the camera
Dont focus your glance at the image of the person on the screen. This will make it appear as though you are looking down. One trick is to tape a photo of somebody next to the web cam lens.