1.14 Botanists are not sure where the first plant was grown or even ____.

1.6 The only thing（ ）really bothers us is whether we will have access to the resources room of the department.

1.5 -Why can＇t you and Bill go to the movies tonight?-We are（ ）a history test tomorrow.

1.4 Water encourages the（ ）of iron and oxygen to form rust.

1.3 The bossy manager is always finding fault with his（ ）.

1.2 The book written by the famous writer is worth（ ）（read）.

1.1 The（ ）（far）away we are from our motherland, the（ ）（much）we miss her.