____is known to all, good friends _________ happiness and value to life.
#99280
A
It; add
B
As; add
C
It; add up
D
As; add to
推荐题目
There a trend that 3D films will become more popular ever since the film Avatar hit the market．
#103325
A
has arisen
B
arose
C
is arising
D
will arise
Ladies and gentlemen, please fasten your seat belt. The plane __________.
#102320
A
takes off
B
is taking off
C
has taken off
D
took off
No decision __about any future appointment until all the candidates have been interviewed.
#101555
A
will be made
B
is made
C
is being made
D
had been made
When I ________ home, I caught a thief stealing from a passerby.
#99477
A
headed
B
was heading
C
has headed
D
had headed
This year’s National Day ____ in a practical way, which is reported in People’s Daily.
#103596
A
is to be observed
B
observe
C
observes
D
is to observe