— Why are you so popular with your students?— As a teacher, I seldom give my students so difficult a problem ____ they cannot work out.
#4683
A
as
B
that
C
if
D
which
推荐题目
Mandy, ___ university student from Canada, teaches us ___ history of western art.
#4652
A
an; the
B
a; the
C
the; /
D
the; a
The Beatles, ________ many of you are old enough to remember, came from Liverpool.
#4962
A
what
B
that
C
how
D
as
At Cannes Film Festival, we noticed Fan Bingbing _________ a beautiful evening dress of imperial robe as she entered the hall.
#4617
A
dressed
B
dressing
C
wearing
D
worn
John and I _____ friends for eight years. We first got to know each other at a Christmas party. But we _____ each other a couple of times before that.
#4952
A
had been; have seen
B
have been; have seen
C
had been; had seen
D
have been; had seen