He used all his .... to force the door open.

A. strong B. strengths C. strength D. strengthen

The beach is full of all kinds of .......

A. pollute B. pollution C. pollutants D. polluted

A ........... eruption occurred here last night.

A. disaster B. disastrous C. disasterative D. no answer is correct

Our .... have not warned our fishermen about the Changchun typhoon carefully.

A. science B. scientist C. scientist D. scientists

The ............. caused a lot of bad effects.

A. volcanic eruptivity B. volcanic eruption C. volcano eruption  D. volcano eruptivity

My .... are so strong that the word “love” can’t describe them.

A. feel B. feeling C. felt D. feelings

Look at the .... bulbs. They are so beautiful.

A. colour B. coloured C. colourful D. B&C

Fruits’ festival in Suoi Tien Park is a very .... activity.

A. joy B. joyous C. joyful D. B&C

Tet is the most important ..... in Vietnam.

A. celebrate B. celebration C. celebrating D. celebratory

It's her ..... obligation to tell the police what she knows.

A. immoral B. moral C. morality D. morally