问题详情

More and more people (1){A. must; B. have; C. had; D. has} to install burglar alarms in their houses if they want to get insurance. Insurance companies have been asking people in certain areas to install the alarms before they give them insurance for the past year. This is (2){A. due; B. caused; C. because; D. because of} to the increasing crime in some parts of the country. This can be a problem for people (3){A. which; B. what; C. who; D. ---}are struggling to make both ends (4){A. go; B. come; C. meet; D. loose}. The alarms, which can be very expensive, need to be installed by an electrician. It is estimated that 20% of homes have alarms installed, and that another 20% of people plan (5){A. to have them installed; B. to have them installing; C. to have been installing them; D. to install them} but have not installed them yet.