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
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We are taking action, but how effective it will remain _______.
#93731
A
to see
B
to be seen
C
seeing
D
seen
On August 12,2009, Typhoon Morakot swept across Taiwan island, _____ a lot of villages _____.
#93662
A
leaving; damaged.
B
left; damaged.
C
left; damaging.
D
leaving; damaging.
________in the heart of Toronto is the Canadian National Tower , which is often called the CN Tower for short.
#97152
A
Locating
B
Located
C
Having been located
D
Having located
The problem he referred to _____ difficult, but is isn’t at all.
#96931
A
must be
B
seeming
C
seems
D
seem