Scientists generally agree that Earth's climate will warm up over the next 50 to 100 years __________ it has warmed in the 20,000 years since Ice Age.
My teacher inspired ____ a summer course to improve my writing skills.
Try____ she might, Sue couldn’t get the door open.
______ he referred to in his article was unknown to the general reader.
This magazine is very with young people, who like its content and style.
We give dogs time, space and love we can spare, and _____, dogs give us their all. A in all B in fact C in short D in return