It is reported that a large number of students have dropping out of school in recent years.
C. dropping -> dropped (Cấu trúc thì hiện tại hoàn thành: have + VpII)
_______ has been a topic of continual geological research.
The Lake District,____________________ was made a national park in 1951, attracts a large number of tourists every year.
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
He_______________us but he was short of money at the time.
Stephanie: "Oh, no! I left my book at home. Can I share yours?" Scott: "______ "
The packages___________________ so that it would be easier to carry them.
__________ John Kennedy was elected president, he was the youngest American President ever.
Tom: "___________________ " Mike: "I won't say no!"
The boat was sailing north when a terrible storm_____________ .