单选题 The problem is that we lack the ____ to tackle the task.

单选题 The introduction of containers in transport greatly ____ carriage of goods.

单选题 The approach turned ____ to be effective.

单选题 Please confirm your participation at your earliest ____.

单选题 I have attached some sketches and ____ materials.

单选题 They are asking me ____ advice ____ how to improve the productivity.

单选题 Experts both at home and ____ will exchange their views on the issue.

单选题 I would be glad to set it ____.