1．The highway ________ between Guangzhou and Nanchang is to be completed next month.
A．is to be built B．to be built
C．is being built D．being built
答案 D [此处应用being built作后置定语。]
2．Mom, I lost ________ diamond ring you bought for me as my birthday present.Could you keep ________ eye out for it when you clean my bedroom?
A．a；an B．a；the C．the；an D．the；the
答案 C [第一空表示特指，应用定冠词；第二空keep an eye out for sb/sth意为“留心或注意某人或某物”。 ]
