Lucy got a promotion in her company, ______ was a big surprise for her.

Lucy knew nothing about it ________ her sister told her.

A、because
B、until
C、if
D、since

The secretary got a promotion because of her ___.

A、

effectiveness

effect

efficiency

affection

Her hard work ______ a big bonus for her.

Lucy was unable to___ her surprise when she saw her teacher in the supermarket.

A、

envelop

screen

conceal

shield