They left the office without ________ a word.
A. having saidB. sayingC. to sayD. said
Finally he succeeded ________ the field.
A. enterB. enteringC. to enterD. having entered
The explorer could not even strike a match, ________ after the long journey on the freezing day.
A. to freezeB. freezingC. frozenD. to be frozen
The child enjoyed ________ after outside.
A. to lookB. to be lookedC. being lookedD. looking
Over the past half century, ________ chemical fertilizers has become very common in farming.
A. having usedB. useC. usedD. using
The problems are too complex ________ easily.
A. to be solvedB. to solveC. solvedD. solving
