1 We will be waiting here until he plugs in the laptop. (we use Present Simple in time clauses that refer to future time)
2 I forbid you to use the computer till you are sixteen. (we use Present Simple in time clauses that refer to future time)
3 When Sophia comes back next month, it will be three years since she
was away. (we use Future Simple in the main clause as it refers to future time)
4 Scientists find it difficult to cure many illnesses until the level of
technology is improved. (we use Present Simple in time clauses that refer to future time)
5 She never uses her mobile when the battery is low. (we use Present Simple to describe a habit, a regular action)
6 Last week, Sam required a refund when he discovered that his new digital camera was broken. (we use Past Simple to talk about things that happened in the past)
7 Until you bought me a cellular, I had used a land-line phone. (we use Past Perfect for the action that took place first)
8 Tomorrow Tom will pay the connection fee when he goes to work . (we use Future Simple in the main clause because it refers to the future and Present Simple in the time clause)
your trousers are in the wardrobe
where are his scissors
there is a lecture on history today
the shopping is heave
where are my gloves
this information is correct
his hair is brown
my socks are in the drawer
our furniture is very cheap
his accommondation is luxurious
evidence is needed before the trial can continue
the news are very exciting
mumps are a common illness among children
my glasses are on the table
chinese is difficult to learn
where are the kitchen scales
billiards is a popular game
his work is very interesting
people are starving in some countries
education is the key to his success