If ____unsolved, the problem of food safety may lead to more serious results.
#89868
A
left
B
making
C
remained
D
taking
推荐题目
________ by strong snowstorms, the area faced severe water and electricity shortage.
#88793
A
Struck
B
Having struck
C
Striking
D
Be struck
I’m sure your suggestions will _____ the problem.
#95896
A
contribute to solving
B
contribute to solve
C
be contributed to solve
D
be contributed to solving
------ Henry doesn’t seem like the same person.------ ________ so much in the war has made him more thoughtful.
#90954
A
For him to see
B
His seeing
C
Having seen
D
To have seen
The teacher couldn’t make himself attention to because the students were so noisy.
#96714
A
to pay
B
to be paid
C
paid
D
pay
The prize of the game show is ＄30,000 and an all expenses _______ vacation to China．
#97595
A
paying
B
paid
C
to be paid
D
being paid