Fill in the blanks.
1This water isn't safe ...............
Wrong!
After adjectives like "safe", use "to drink" without repeating the object.
2He doesn't speak coherently. It is difficult ...............
Wrong!
With the introductory subject "it", the infinitive needs its object, so "to understand him" is correct.
3The questions were difficult. They were impossible ...............
Wrong!
After "The questions were impossible", use "to answer" without repeating the subject as an object.
4She is easy ...............
Wrong!
After "She is easy", use "to please" without repeating "she" as an object.
5It is not easy ...............
Wrong!
With the introductory subject "it", the infinitive needs its object, so "to please her" is correct.
6It is kind of you ............... me to the airport.
Wrong!
After "It is kind of you", use the to-infinitive "to take".
7You have enough time ...............
Wrong!
After "enough time", the correct infinitive of purpose is "to decide".
8They gave me permission ...............
Wrong!
After "permission", use the to-infinitive "to leave".
9It is a difficult puzzle ...............
Wrong!
After "a difficult puzzle", use "to solve" without repeating the noun as an object.
10I am sorry ............... that you have lost your job.
Wrong!
In this expression, "sorry" is followed by the to-infinitive "to hear".
11She is eager ............... everyone.
Wrong!
After "eager", use the to-infinitive "to please".
12If a new vacancy arises, you will be the first person ...............
Wrong!
After "the first person", use the to-infinitive "to know".
Done.
Score: 0/12
Answers
- This water isn’t safe to drink
- He doesn’t speak coherently. It is difficult to understand him
- The questions were difficult. They were impossible to answer
- She is easy to please
- It is not easy to please her
- It is kind of you to take me to the airport.
- You have enough time to decide
- They gave me permission to leave
- It is a difficult puzzle to solve
- I am sorry to hear that you have lost your job.
- She is eager to please everyone.
- If a new vacancy arises, you will be the first person to know
