Linda is thanking Daniel for his birthday present.

- Linda: "Thanks for the book. I've been looking for it for months."- Daniel: "______."

The _________ prices of property in big cities may deter people on low incomes from owning a house there.

After a momentary _________ of concentration, Simon managed to regain his focus and completed the test.

We arranged to meet at the station, but she didn’t _______.

Our professor _______ said we should turn in the assignment on Friday.

Two students are talking about the school curriculum.

- Ted: “Swimming should be made part of the school curriculum.”

- Kate: “________. It is an essential life skill.”

Many parents tend to make their children study hard in the belief that good education will enable them to _________ in the future. 

The operation of the newly constructed plants is likely to lead to _________ environmental consequences.

We all believe that a happy marriage should be _______ mutual love.

Spain has little good farmland and lacks many ________ raw materials.

Professional gardeners appreciate flowers for their ________ gorgeous colors, and pleasant fragrance.

Jane is talking to Mike, who has just helped her with her luggage.

- Jane: “_________.” - Mike: “It’s my pleasure.”

They were among the first companies to exploit the ______ of the Internet.

Everything is ________ you. I cannot make ________ my mind yet.

________ charge for ________ excess luggage is £10 ________ kilo.

They were 30 minutes late because their car _______ down.