Directions: In this section of the test, there are ten paragraphs. Each of the paragraphs is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Spell out the missing letters of the word on your Answer Sheet.
Paragraph Ten
Mobile phones and satellites are becoming valuable farming tools in Pakistan.A new program there uses satellite information to estimate how much water a field needs. The satellite then sends this information by text message to farmers' mobile phones. The program's aim is to prevent the farmers from overwatering crops.
Modern technology helps to i____ farming in Pakistan
【正确答案】：improve
