The reason why Malaysia Airline Flight370 disappeared remained_____.
#88645
A
look into
B
to be looked into
C
looking into
D
to look into
推荐题目
．From his ________ voice on the phone I know everything is going under way.
#97931
A
satisfactory
B
satisfying
C
satisfied
D
satisfaction
Do you consider it any good _____ psychology?
#90747
A
to learn
B
to have learned
C
learning
D
having learned
Do you know we have much difficulty ____ the work on time..
#97766
A
on finishing
B
finishing
C
to finish
D
at finishing
________in the computer games，the boy no longer put his heart into study.
#94273
A
Absorbing
B
Losing
C
Absorbed
D
Devoted
---It’s a pity that England should have been defeated so easily in the 2010 World Cup. ---They play so well; I really think they are worthy____ a place in the finals.
#97251
A
of having
B
of being had
C
having
D
to have