I’m sure that if you make good use of your ____ time, your English will be improved in a short time.

Nowadays, _______ cars are more and more popular.

It is       for all drivers not to drive after drinking, otherwise, they would be put into jail. 

I had to call a taxi because the box was ______ than I’d expected.

When it was his turn to deliver his speech,       ,he walked towards the microphone.