He was driving so fast as to get himself into a dangerous situation _____ he is likely to lose control overhis ear[ ]

Tomorrow is my grandfather’s birthday. What should I buy for him

With trees and grass_____ about 35％ of the urban area，the city ofHefei has taken on a new look.

It is these poisonous products ________ can cause the symptoms of the flu, such as headache and aching muscles.

In our library there a number of books, and in these years the number of them growing larger and larger.