Chinese students usually spend ______ the students of the US studying in their free time.
| A．twice as many hours as | B．as twice many hours as |
| C．twice hours as many as | D．as many as twice hours |
Start out right away, _____ you’ll miss the first train.
| A．and | B．but | C．or | D．while |
Tom went off to the EXPO Garden with his friends, _____ an exciting day of discovering the unique (
独特的) culture of each nation.
| A．expected | B．expecting | C．to expect | D．expects |
I regret _____ that I am unable to help you.
| A．saying | B．say | C．to say | D．said |
---Did the book give the information you need?
--- Yes. But _____ it, I had to read the entire book.
| A．to find | B．find | C．to be finding | D．Finding |
My advisor encouraged _____ a summer course to improve my writing skills.
| A．for me taking | B．me taking | C．for me to take | D．me to take |