After walking on the zigzag path to the mountain top for a few hours, the tourists gathered under trees_____ shade and______ down to have a rest.
#93590
A
provided; sit
B
providing; sitting
C
providing; sat
D
provided; sat
推荐题目
When first __________ to the market, the computer software was not a success due to its complexity in operation.
#96476
A
introducing
B
being introduced
C
introduced
D
to be introduced
The two elderly sisters, ____ so long, held each other.
#94639
A
being separated
B
having been separated
C
to be separated
D
had been separated
---You have made great progress in your English study, haven’t you? --- Yes, but much _____ .
#94377
A
remains to do
B
is remained to do
C
remains to be done
D
is remained to be done
________ with the size of the whole earth，the biggest ocean does not seem big at all.
#89187
A
Compare
B
When comparing
C
Comparing
D
When compared
When asked why he went there, he said he was sent there _____for a space flight.
#95266
A
training
B
being trained
C
to have trained
D
to be trained