can/let/be allowed to
Passive Voice
Past Perfect/Past Perfect Continous
Modals of dedcuction (pr, past)
Quantifiers, non-defining relative clauses
100
We ____ to wear jeans at school. (+)
ARE ALLOWED
100
The book ____ by Charles Dickens. (write)
WAS WRITTEN
100
Peter was Sally's best friend. She __ (know) him all her life.
HAD KNOWN
100
Sue hasn't eaten anything all day. I'm sure she ___ hungry.
MUST BE
100
I need some more batteries, I don't have ___ batteries.
ENOUGH
200
You ____ park here. (+)
CAN
200
Cars ____ in Japan. (produce)
ARE PRODUCED
200
The children were wet because they __ (play) football in the rain.
HAD BEEN PLAYING
200
Martin sometimes goes to the gym on Fridays. He ___ be at home now. (-)
MIGHT NOT/MAY NOT
200
My phone has broken already! + It cost 150 pounds.
My phone, WHICH COST 150 POUNDS, has broken already!
300
You ___ be late for the class. (-)
CAN'T BE
300
Next month the new update ____. (release)
WILL BE RELEASED
300
We were very hungry because we ___ (not / eat).
HADN'T EATEN
300
This colibri ___ weigh more than a few gramms. (-)
CAN'T
300
Pete has tested 3 gadgets. + Pete owns a gadget shop
Pete, WHO OWNS A GADGET SHOP, has tested 3 gadgets.
400
They ___ us put on make-up at school. (+)
LET
400
A lot of studies ____ about the importance of sleep. (do)
HAVE BEEN DONE
400
Everything was white because it ___(snow).
HAD BEEN SNOWING
400
Perhaps my brother ate the chocolates.
My brother ________ the chocolates.
MIGHT HAVE EATEN
400
I'll be ready in 2-3 minutes.
My old dishwasher made more noise than the new one.
A FEW
IS LESS NOISY
500
Students ____ to take control of their learning. (+,past)
WERE ALLOWED
500
Homework ____ at home before the lessons. (do)
SHOULD/MUST BE DONE
500
- Why ___ (be) the baby's face so dirty?
-He ___ (eat) chocolate.
WAS, HAD BEEN EATING
500
I'm sure I didn't leave my keys at home.
I _____ my keys at home.
CAN'T HAVE LEFT
500
Kate is such a computer addict. + She's my sister's best friend.
Kate, who's my sister's best friend, is such a computer addict.