Nowadays, more and more people like to hunt for what they want at www.taobao.com and have them ____ by the express company.

A. delivering B. delivered C. to deliver D. deliver

More and more high-rise buildings have been built in big cities____ space.

A. in search of B. in place of C. for lack of D. for fear of

The new technology, if____ to farming, will help increase the grain output.

A. applying B. to apply C. applied D. having applied

The woman ____there under the tree, ____ in a blue shirt, is our headmaster.

A .sitting; wearing B. sitting; dressed C. seating; dressed D. seated; dressing

Computers and mobile phones, though they are indeed making our life ____ and more ____, have reduced the need for face-to-face communications.

A. easily; efficient B. easier; efficient C. easy; efficiently D. easily; efficiently

He had to pause from time to time to wipe the sweat from his forehead, because the air-conditioning system ____.

A. broke in B. broke up C. broke out D. broke down

After a careful survey about the cause of the newly-built bridge, they finally came to a(n) _________ that it was due to the heavy rain.

A. construction B. motivation C. conclusion D. impression

With the word “PM2.5” ____ appearing in media reports, people pay greater attention to it and seek health tips for smoggy days.

A. constantly B. instantly C. roughly D. firmly

While I was in the foreign country, my younger brother always ____ me of what was happening in big cities in time.

A. approved B. accused C. informed D. warned

---- Here____! Where is Xiao Liu?

　 ---- There____.

A. comes the bus, is he B. comes the bus, he is

C. the bus comes, is he D. the bus comes, he is