Having a trip abroad is certainly good for the old couple, but it remains _______ whether they will enjoy it. 
#98604
A
to see
B
to be seen
C
seeing
D
seen
推荐题目
The lady spoke slowly, trying to make herself ______.
#95113
A
understand
B
understanding
C
understood
D
to be understood
________ to our study is the best way ________ high grades.
#90501
A
Devote ourselves; to achieve
B
Devoting us; of achieving
C
Devoting ourselves; to achieve
D
Devoted ourselves; of achieving
The secretary worked late into the night,_______ a long, speech for the president.
#90043
A
to prepare
B
was preparing
C
prepared
D
preparing