______ my business trip to Hanoi last month, I was able to attend his wedding.
_______ has been a topic of continual geological research.
According to critics of globalization, several developed countries have become rich because of
It is stated in the passage that____________________ .
The phrase "keeps sellers on their toes" in the passage mostly means "______".
The Lake District,____________________ was made a national park in 1951, attracts a large number of tourists every year.
Regular exercise and good diet will bring______fitness and health.
The examination was not very difficult, but it was_____________________ long.
The boat was sailing north when a terrible storm_____________ .
The pool should not be made so deep______small children can be safe there.
Stephanie: "Oh, no! I left my book at home. Can I share yours?" Scott: "______ "