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1. Complete the following sentences with can, could, might, or must. It is possible to use more than one option for a gap.
a. This _______ not be an artifact from a pyramid. It's too new.
b. Look at all these diamonds on this bracelet! It _______ have cost Peter a fortune to buy it.
c. We should dig very carefully around here. There _______ be some objects under the surface.
d. This glass _______ have been an important part of their festival. However, it _______ also be only a coincidence that we find it here.
2. Read the following paragraph. Decide whether the statements are True (T) or False (F).
Crop Formations
Every year, mysterious crop circles or formations appear in fields in England. The county of Wiltshire, in southwest England, can be called the world capital of crop circles. Some people think aliens might have made them. This is because sometimes the formations are very big, and a few people couldn't have made them overnight. Others think that people made these formations as a prank or as a way to make money. They point out that farmers might have allowed other people to form circles or other formations on their fields. Then, these farmers and makers can collect money from curious visitors who come to see and take photos of the formations.
a. Crop formations are quite rare. _____
b. A lot of these formations can be found in Wiltshire. _____
c. Some people think aliens made these formations. _____
d. Some of the formations are very big. _____
e. Some people are ready to pay to see the formations. _____
3. Write a short paragraph of 100-120 words to describe a mystery you know. Use the paragraph in 2 as a model.
