Organized volunteering and work experience has long been ___vital companion to___ university degree courses.
#11621
A
不填；the
B
a; the
C
a; 不填
D
a ; a
推荐题目
Don’t take any measures on your own before you ____ your doctor if the pain continues.
#13322
A
confirm
B
consult
C
abolish
D
adapt
About _______ gene-targeting drugs are already in testing pipeline. It won’t be long ______ they are put into effect.
#14337
A
two dozen; before
B
two dozens; that
C
two dozens of; before
D
dozens; that
—Good morning.I've got an appointment with Miss Smith in the Personnel Department.—Ah，good morning.You ________ be Mrs.Peters.(2010·北京)
#11448
A
might
B
must
C
would
D
can
(2013·高考浙江卷)Eye doctors recommend that a child’s first eye exam ________ at the age of six months old.
#11953
A
was
B
be
C
were
D
is