—I hear Kris had an accident as he was riding his bike to school yesterday.
—________？ He is always so careful when he is riding.
| A．What for | B．How come |
| C．Why that | D．So what |
The father as well as his three children____ skating on the frozen river every Sunday afternoon in winter
| A．go | B．is going |
| C．are going | D．goes |
一How do you like the book?
一Wonderful, and I as well as most of my classmates＿＿＿quite interested in it.
| A．are | B．were |
| C．has been | D．am |
Generally, students’inner motivation with high expectations from others_________ essential to their development.
| A．is | B．are |
| C．was | D．were |
Professor Smith, along with his assistants, on the project day and night to meet the deadline.
| A．work | B．working |
| C．is working | D．are working |
A number of methods been used, but the number of animals still small in the forest.
| A．have; is | B．has; is |
| C．have; are | D．has; are |