Find the word which has a different sound in the underlined part

1. Find the word which has a different sound in the underlined part.

A. pet B. letter C. let D. set

2. We often post many questions to discuss on a/an___________ after school.

A. forum B. market C. club D. office

3.__________youngest boy has just started going to__________ school.

A. A – Ø B. Ø – the C. an – Ø D. The – Ø

4. Linh wanted to make some pies but didn’t have apples_______, she decided to bake a cake.

A. therefore  B. in contrast C. namely D. so

5. I always enjoy  to my grandfather. He always tells me great stories.

A. to talk B. to talking C. talking D. talk