单选题 When you have filled in the form, keep the top part and send ______ part to the bank.

单选题 If you leave your preparation ____ the last minute, you’ll reduce your chances of passing the exam.

单选题 All our spare parts are guaranteed if you have your car ____ with us each year.

单选题 It was soon after the economic crisis ______ sales of e-business started to grow.

单选题 We are confident that we ____ our export sales by 15 percent by the end of this year.

单选题 Make a list of what you have to do and put the items ____ order of importance.

单选题 ______ we receive your application, we’ll send you an e-mail to confirm it.

单选题 The service there was ____ poor that we went to another restaurant down the street.