The result of the studies have had a strong impact on future developments.

I don't understand why the students didn'd keep silent while the speech ___________.

"Be sorry for sending the wrong information, Kate" said Rita.

The proposal seemed like a good idea. The manager refused it.

Some snakes have hollow teeth they are called fans that they use to poison their victims.

What woman was saying were so important that I asked everyone to stop talking and listen.

The news surprised everyone in the family.

Sleeping, resting and to drink fruit juice are the best ways to cure for a cold.

She raised her hand high. she wanted to attract her teacher's attention.

We should participate in the movement _______ to conserve the natural environment.

An endangered species is the one __________ population is so small that it is in danger of becoming extinct.

Sports clear my mind. They also help me maintain a healthy lifestyle.

Ms.Brown askes me _________ in my class.

After David _______ his homework, he went straight to bed.

__________, we would have been forced to sack him.

You have just passed your exam. This makes your parents happy.