The train ________ here at 6 o’clock.

This species has nearly _________because its habitat is being destroyed.

you watch the sunrise of Mount Tai lastweekend— Yes Luckily enough, when we climbed to the top ofit, the thick fog began to _____

Sorry, I’m late. I ____ have turned off the alarm clock and gone back to sleep again.

Dave doesn’t like playing _____ football, but he likes playing _____ piano.