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Unit Pack 11 · all students

Relative clauses

Original EREKA lessons. Read first, then answer. On a phone use the ☰ menu.

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U61
Who that which
study unit

Formal explanation

Who for people. Which for things. That for both in identifying clauses.

Who that which — Who for people. Which for things. That for both in identifying clauses.
  • Who for people. Which for things. That for both in identifying clauses.
EREKA examples
Who for people. Which for things. That for both in identifying clauses.

1. This unit is mainly about:

2. Read the rule first, then:

3. EREKA lessons in these packs are:

4. On a phone, open units with:

5. After this unit you should:

U62
Leaving out that
study unit

Formal explanation

If that is the object, you can drop it: the pack I opened.

Leaving out that — If that is the object, you can drop it: the pack I opened.
  • If that is the object, you can drop it: the pack I opened.
EREKA examples
If that is the object, you can drop it: the pack I opened.

1. This unit is mainly about:

2. Read the rule first, then:

3. EREKA lessons in these packs are:

4. On a phone, open units with:

5. After this unit you should:

U63
Whose where
study unit

Formal explanation

Whose = possession. Where = place.

Whose where — Whose = possession. Where = place.
  • Whose = possession. Where = place.
EREKA examples
Whose = possession. Where = place.

1. This unit is mainly about:

2. Read the rule first, then:

3. EREKA lessons in these packs are:

4. On a phone, open units with:

5. After this unit you should:

U64
Extra information commas
study unit

Formal explanation

PECHS, which is in Karachi, is busy. Do not use that after the comma.

Extra information commas — PECHS, which is in Karachi, is busy. Do not use that after the comma.
  • PECHS, which is in Karachi, is busy. Do not use that after the comma.
EREKA examples
PECHS, which is in Karachi, is busy. Do not use that after the comma.

1. This unit is mainly about:

2. Read the rule first, then:

3. EREKA lessons in these packs are:

4. On a phone, open units with:

5. After this unit you should:

U65
-ing and -ed clauses
study unit

Formal explanation

Learn the form. Then answer.

-ing and -ed clauses — Learn the form. Then answer.
  • Learn the form. Then answer.
EREKA examples
Learn the form. Then answer.

1. This unit is mainly about:

2. Read the rule first, then:

3. EREKA lessons in these packs are:

4. On a phone, open units with:

5. After this unit you should:

U66
What versus that
study unit

Formal explanation

What = the thing that. After a noun use that, not what.

What versus that — What = the thing that. After a noun use that, not what.
  • What = the thing that. After a noun use that, not what.
EREKA examples
What = the thing that. After a noun use that, not what.

1. This unit is mainly about:

2. Read the rule first, then:

3. EREKA lessons in these packs are:

4. On a phone, open units with:

5. After this unit you should:

Games

Pairs 0 / 6

Detective: press Start

Fix the sentence

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