I arrived at the classroom to find I had _______ my book _______ on the bus
A. left…alone
B. left…behind
C. left…aside
D. left…off
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The shops offer almost everything _______ ranges from cheap to expensive
A. that
B. which
C. what
D. it
I will never forget the days _______ I spent with my friends in Beijing
A. when
B. that
C. in which
D. on that
Smoking, _______ is harmful for people’s health, is nevertheless popular nowadays
A. though
B. that
C. although
D. which
I will never give in _______ they might do or say about my plan
A. whatever
B. however
C. no matter how
D. how