Helen was much kinder to her youngest son than to the others, __________, of course, made the others envy him.
#4964
A
who
B
that
C
what
D
which
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____people in the world are sending information by E-mail every day. 
#4850
A
Several million
B
Many millions
C
Several millions
D
Many million
Only when __________________ permission _______________ allowed to enter the lab.
#4817
A
a teacher has given; are the students
B
has a teacher given; are the students.
C
has a teacher given; the students are
D
a teacher has given; the students are
.It is no use ______ after you know your failure.
#4686
A
cry
B
to cry
C
crying
D
cried
“It looks as if he were drunk.” “So it does. _____.”
#4953
A
He’d better give up drinking
B
He shouldn’t have drunk so much
C
Health is more important than drink
D
I wonder why he is always doing so