.—Must I turn off the gas after cooking ?  --Of course . You can never be ___ careful with that. 
#95138
A
enough
B
too
C
so
D
very
推荐题目
________________late, he also forgot his books.
#94635
A
Not only the boy turned up
B
Not only the boy turned out
C
Not only did the boy show out
D
Not only did the boy show up
It is_______ he often fails in exam_______ makes his parents worried about him.
#93109
A
because, that
B
that, that
C
不填, that
D
what, that
—Where can I find Martin?Dad is asking for him.—He_______in the backyard chopping wood.
#94579
A
supposes to stay
B
is supposed to stay
C
supposes staying
D
is supposed staying
Nowadays when tourists pay a visit to Xi’an, _______ for them to take public transport. 
#92813
A
there is very convenient
B
it is very convenient
C
there is very conveniently
D
it is very conveniently
 If city noise _______ from increasing, people _______ shout to be heard even at the dinner table 20 years from now.
#94723
A
are not kept; will have to
B
are not kept; have to
C
do not kept; will have to
D
do not kept; have to