单选题 )These tasks are not easy to ________, as most of the tricks.

单选题 We ______ some practical suggestions of developing the company, along with some supporting factors.

单选题 She gave me some useful hint on how to ________ with this issue.

单选题 He ______ opens the shipment, only to find that the products were poor quality.

单选题 At a____________level, things seem to have remained the same.

单选题 ____you see this bird? Isn't it beautiful?

单选题 Only limited _____are available to the police.

单选题 )He is a person with great determination and a will of _______.