The technology was____complicated that few engineers of the company were able to handle it.
A. so
B. much
C. too
D. such
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Since 1949,our country____remarkable progress in reducing poverty.
A. make
B. made
C. is making
D. has made
According to the airline,each traveller____one checked bag and one carry-on bag.
A. allow
B. allow to
C. be allowed
D. allowing
A return ticket is often____than a one-way ticket.
A. economical
B. economic
C. more economical
D. most economical
In this company ,about 12 percent of the employees risked____their jobs to information technology.
A. of losing
B. lost
C. lose
D. to lost