English is considered as a(n) _____ language, and it is no surprise that there are so many people in the world learning English.
If he had started at nine o’clock,hehave been in London by eleven o’clock.
Jack,you’re so lazy!This jobhours ago.
Hehave come here yesterday,he?
At last hefinish the work ahead of time.
—Is the flight from Shanghai on time? —Of Course,it is.Itbe arriving in 10 minutes at Gate 9.