Mr. Lin gave us some _____ how to learnEnglish well last week.

The flowers _____ sweet in the botanic garden attract the visitors to the beauty of nature.[ ]

An immediate interest cut might contribute to economy _____, any recovery is likely to be very slow

_________ volunteers will give out leaflets to ask people to protect the wetlands.

The professor gave a really good speech. — I suggest you ______ him some specific questions about his work experience.