作业帮单选It must be comfortable ( ) A to drive B driving C for driving D to drive on
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单选It must be comfortable ( ) A to drive B driving C for driving D to drive on
单选It must be comfortable ( ) A to drive B driving C for driving D to drive on
单选It must be comfortable ( ) A to drive B driving C for driving D to drive on
D
to drive on
A 句型所在 It is +adj. + to do sth
A 有关短语： It is +adj. + to do sth