Explanation

The party continued its political activities in a clandestine way soon after formation.

It was banned in July 1954.

Explanation

"Cattle" is a plural noun, so it doesn’t take an "s" or "is."

The correct form is "These cattle are mine."

Explanation

They burst into tears means to start to cry.

In the phrase "burst into tears," the word "into" is used to indicate a transition or change of state.

"Burst" suggests a sudden.

Explanation

A continental shelf is the edge of a continent that lies under the ocean.

Continents are the seven main divisions of land on Earth.

A continental shelf extends from the coastline of a continent to a drop-off point called the shelf break.

Explanation

The phrase "A series of" is singular, so it takes the singular verb "was."

This structure emphasizes that the lectures were given as part of one unified series.

Explanation

We use no one, nobody, nothing and nowhere to refer to an absence of people, things or places.

We use them with a singular verb: Nobody ever goes to see her. She's very lonely.

Explanation

The CPU (Central Processing Unit) executes instructions and performs calculations.

This making it the primary component responsible for processing data in a computer.

Explanation

A nebula is a giant cloud of dust and gas in space.

Some nebulae come from the gas and dust thrown out by the explosion of a dying star, such as a supernova.

Explanation

A mature tree can absorb approximately 22 kilograms (or 48 pounds) of carbon dioxide from the atmosphere annually.

This is a remarkable process called carbon sequestration, where trees help remove CO2 from the atmosphere, storing carbon in their trunks, branches, roots, and soil.

Explanation

The idiom "As the crow flies" means in a straight line.

It refers to the most direct route from one place to another, without considering any obstacles.