The manager decided to continue the sales for ( ) two weeeks because of the large stock of goods.
A. other
B. another
C. the other
D. others
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Last week two engineers ( ) to help solve the technical problems of the project.
A. have sent
B. were sent
C. sent
D. had sent
We all know that some thing exist ( ) we cannot see them with our own eyes.
A. as soon as
B. even though
C. as far as
D. now that
There may be a need for retraining if you expect employees ( ) the new technology.
A. using
B. use
C. to use
D. used
It was soon after the economic crisis ( ) sales of e-businesss started to grow.
A. why
B. how
C. where
D. that