单选题 —Do you need any help? —No, thanks. We ______ a lot of support since last year.

单选题 Chinese kites in ancient times ______ in the shape of birds.

单选题 ______ scores of times, but Derek still couldn't understand how to use past participle in a concrete situation.

单选题 Every means ______, but none proved ______.

单选题 A rescue worker risked his life saving two tourists who ______ in the mountains for two days.

单选题 Usually Beijing Roast Duck ______ together with special pancakes, green onions and sweet sauce.

单选题 —It's so humid these days! —Don't worry! The rain ______ to stop from tomorrow.

单选题 Only by increasing the number of doctors by 50 percent ______ properly in this hospital.

单选题 No decision ______ about any future appointment until all the candidates have been interviewed.