I have been living in the United States for 20 years, but seldom ________ so lonely as now.
#79580
A
have I felt
B
I had felt
C
I have felt
D
had I felt
推荐题目
Generally speaking_______acording to theinstructions，the drug has no side effect.
#79957
A
when taking
B
when taken
C
when to take
D
when to be taken
______ I already know what career I want to follow.
#80796
A
Young as I am
B
I am as young
C
As I am young
D
As young I am
________ these experiments were successfully completed would we think of going into humans.
#80199
A
If only
B
Only if
C
So that
D
Even if
Once a difficult and even dangerous place , Vietnam is now a friendly detestation that welcomes visitors from all over the world .
#80956
A
considered; visiting
B
considered; to visit
C
considering; visiting
D
considering; to visit
Generally speaking, according to the directions, _____ the drug has no side effect.
#83822
A
when taken
B
when taking
C
when to take
D
when to be taken