____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
-Jack is ill in hospital.  --Really, I _____ him right now.
#104185
A
will visit
B
am going to visit
C
am to visit
D
am about to visit
When Alice came to, she did not know how long she             there.
#101012
A
had been laying
B
has been lying
C
was laying
D
had been lying
--- What is that wonderful smell? --- Our neighbor ________ for a party.
#99373
A
have prepared
B
is preparing
C
prepare
D
will prepare
 -I haven't heard from Henry for a long time. -What do you think ________ to him? 
#104036
A
happening
B
to happen
C
has happened
D
had happened