--- How ________ do you attend the evening classes? --- _______, three times per week.
Standing on the top of the hill, one would not do anything, but _____ the flowing of the clouds around me.
The “magical apple”, which we wish not to be the last one_____ us, has inspired the imagination and passion of millions of people. A fascinateB. fascinating C. fascinated D. to fascinate
Why the explosion occurred was ____ the laboratory attendant had been careless.
________ one foot before the other, slowly and purposefully, the deer walked up to_______ I was _______.
This field of scientific research remains________.