I don’t know when I will leave for Australia.I don’t know when______ ______ for Australia.

A historic moment of the civil rights movement was the March on Washington of August 28, 1963 when______ delivered his “I Have a Dream” speech.

Concentration<br/>of production is appropriate when______ A: the<br/>product's value-to-weight ratio is low B: volatility<br/>in important exchange rates is expected C: the<br/>product does not serve universal needs D: the<br/>product serves universal needs

When do people open up?: When they are comfortable|When they are sick|When they are uncomfortable|When they feel powerful

When people opening up? A: When they feel powerful B: When they are sick C: When they are uncomfortable D: When they are comfortable

When will an offer become effective? A: when it is dispatched B: when it reaches the offeree C: when it is withdrawn D: when it is revoked

Can you tell _______?: when did it happen|when it happened|when it was happened|when was it happened

When are multimedia tools effective? A: When they are colorful. B: When they enhance your message. C: When they involve technology. D: When they are funny.

When did the author take part in the race? A: When she was a freshman. B: When she was a sophomore. C: When she was a junior. D: When she was a senior.

When can items of clothing be expensive? A: When they are from the supermarket. B: When they are taxed too much. C: When it is a well-known brand or design. D: When they are in the sale.