[填空题]You can hardly imagine a child ______ (treat) so cruelly.

[填空题]You can hardly imagine a child（）(treat) so cruelly.

[填空题]You can hardly imagine a child ______ (treat) so cruelly.

[填空题]You can hardly imagine a child_________ (treat) so cruelly.

[单项选择]You can hardly imagine the difficulty the single mum had （　） her children.
A. brought up
B. to bring up
C. bringing up
D. to have brought up

[单项选择]You can hardly imagine Bell （　） a meal.
A. to be cooking
B. cooking
C. to cook
D. cook

[单项选择]You can hardly imagine how difficult （　） to find a decent job at a big company.
A. is it
B. it is
C. she is
D. is she

[单项选择]I can hardly imagine Peter （　） across the Atlantic Ocean in five days.
A. sail
B. to sail
C. sailing
D. to have sailed

[填空题]Only when you can treat grammar as a jigsaw, _______________________________ (语法课程才能使你感到趣味盎然).

[填空题]When people feel sick, doctors treat them. So, who treats animals Veterinarians are{{U}} (1) {{/U}}. But they also protect human health. Veterinarians are{{U}} (2) {{/U}}against animal diseases that{{U}} (3) {{/U}}. Diseases, like some kinds of bird flu, can spread to humans. Others, like{{U}} (4) {{/U}}, cause economic damage. Some veterinarians in the United States{{U}} (5) {{/U}}. Some study diseases. Others work for drug companies and medical companies. And about half of all veterinarians care for more than one-hundred-million cats and dogs that{{U}} (6) {{/U}}. Becoming a veterinarian is hard work. Students take two years of{{U}} (7) {{/U}}. They must learn in the classroom about animal biology, diseases, {{U}} (8) {{/U}}. Then, they attend four years in a college of veterinary medicine. There, students work in laboratories and treatment centers to{{U}} (9) {{/U}}about animal health. They also learn to{{U}} (10) {{/U}}. There are twenty-eigh