It took      building supplies to construct these energy-saving houses. It took brains, too.

A. other than    B. more than  C. rather than  D. less than

 Over the past decades, sea ice     in the Arctic as a result of global warming.

A. had decreased  B. decreased   C. has been decreasing D. is decreasing

 The medicine works more effectively      you drink some hot water after taking it.

A. as    B. until    C. although     D. if

 There is a great deal of evidence     that music activities engage different parts of the brain.

A. indicate  B. indicating C. to indicate D. to be indicating

 The system has been designed to give students quick and easy     to the digital resources of the library.

A. access    B. passage    C. way   D. approach

 The incomes of skilled workers went up.    , unskilled workers saw their earnings fall.

A. Moreover  B. Therefore C. Meanwhile D. Otherwise

 ——I’ve read another book this week.

——Well, maybe     is not how much you read but what you read that counts.

A. .this    B. that    C. there  D. it

 ______ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.

A. To be tried  B. Tired C. Tiring D. Being tired

 I don't understand what the engineer means, but I’ve got    rough idea of  Project plan.

A. the; a  B. 不填； the  C. the；不填  D. a; the

 ——Hey, you haven’t been acting like yourself. Everything OK?

——           .

A. I’m fine, thanks   B. Sure, it is  C. That’s good D. It’s OK