Complete the following sentences.

1. …………………… children can be difficult.

a) all b) all of c)either could be used here

2. She has eaten ……………………. the cake.

a) all b) all of c) either could be used here

3. Is that ………………….. them?

a) all b) all of c) either could be used here

4.  ……………………. my friends like riding.

a) all b) all of c) either could be used here

5. She has invited ……………………. you.

a) all b) all of c) either could be used here

6. Mary sent ……………………… them her love.

a) all b) all of c) either could be used here

Answers

1. All children can be difficult.

2. She has eaten all of the cake. OR She has eaten all the cake.

3. Is that all of them?

4. All my friends like riding. OR All of my friends like riding.

5. She has invited all of you.

6. Mary sent all of them her love.

Grammar notes

Before a noun with a determiner (articles, demonstratives and possessives) all and all of are both possible in British English. American English usually has all of.

Before a personal pronoun, we use all of.

Before a noun with no determiner, we use all.