单项选择题
A. are B. is C. was D. has
Rubber differs from plastics () it is produced naturall...
单项选择题Rubber differs from plastics () it is produced naturally and not in file lab.
A. at that B. in that C. for that D. with that
Please don’t be angry. I()to help rather than to hurt y...
单项选择题Please don’t be angry. I()to help rather than to hurt you.
A. plotted B. managed C. supposed D. meant
The statue is believed () by a professional thief a cou...
单项选择题The statue is believed () by a professional thief a couple of weeks ago.
A. to have stolen B. to be stolen C. having been stolen D. to have been stolen
