The number of people in the world ________ about 6 billion and large quantities of waste ________ each year.[ ]

Jenny did very well in maths exam.–Oh,yeah! She is _____ maths.

Practising Chinese kung fu can not only _____one’s strength, but also develop one’s character. [ ]

With so much noise of the traffic, I couldn’t ______ and do my research work.[ ]

He was known to have been hanging about and was not expected to pass the test ______, his failure came as no wonder to his parents