I forgot my keys, _______ I couldn’t open the door.
A. but
B. so
C. because
D. and

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Vocabulary & Grammar › ViewCultural diversity is a driving force of development, not only ____ economic growth, but also as a means of leading a more fulfilling intellectual, emotional, moral and spiritual life.
A. in terms of
B. with respect to
C. in response to
D. with the aim of
Grammar › View
John doesn’t know how_________the computer on.
A. to switch
B. switching
C. to switching
D. to have switched
Tenses › ViewWhich of the following is a time marker for the Simple Past tense?
A. Nowadays
B. Yesterday
C. Currently
D. At the moment
Grammar › View
We used it to indicate that something is just your opinion and you know that other people might have different opinions.
A. as far as i concern
B. as long as
C. as far as i know
D. as far as i´m concerned
