I think humour is a vital form of entertainment, ____ it makes us laugh and laughing keeps us healthy.
#32174
A
when
B
after
C
if
D
because
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The librarian promised to get the book for me ____she could remember who last borrowed it.
#80122
A
in case
B
if only
C
even if
D
ever since
A good friend of mine from ______ I was born showed up at my home right before I left for Beijing.
#80587
A
how
B
whom
C
when
D
which
A good teacher must be able to hold his students’ attention ____ he reaches the end of the class.
#31352
A
when
B
after
C
until
D
unless
---It’s pouring now. Are we still going camping tomorrow?----_____ it is good or bad, we will set off as planned.
#31284
A
However
B
Whether
C
Whatever
D
No matter