He is a leading authority___plant diseases.A、onB、aboutC、forD、of

Salty water is generally harmful ______ plants.A、forB、toC、withD、over

Tony Carnevale, lead author of a new report reveals______.A．college graduates don"t look f

The plant, which he had deemed dead, blossomed with ______ suddenness.A．monstrousB．monoton

The authors attitude towards planting gardens is all of the following EXCEPT______.A．joyfu

In the passage,______is likened to planting a garden.A．fulfilling ambitionB．making a contr

______is the author of Babbit, which leads to the first Nobel Prize in Literature in Ameri