单选题

He failed again inthe driving test. I don’t know why ____ hewas so nervous.

单选题 I tell my motherabout my trials at work and *brag about the kids.

单选题 Visiting in a humidclimate will cause the traveler’s clothing to become *saturated withsweat.

单选题 There is an *extensiveglacier system, endless forests, and innumerable lakes throughout this highlandarea.

单选题 In the heart of thecontinent of Antarctica it is almost as high as the *summits of the Alps.

单选题 The two drivers wereinjured in the *collision.

单选题 In most countries,the crime of murder carries *harsh penalties.

单选题 Scientists aretrying to develop computers that will *simulate the human thoughtprocess.

单选题 The employee had to *breakoff the conversation in order to wait on his manger.