Because they hadn’t booked a room in advance，there were left when they arrived at the hotel．
| A．none | B．no one | C．nobody | D．nothing |
Jenny worked hard before the final examination，and it_______．She got an A．
A．showed off B．paid off C．put off D．took off
All the things __________ must be done well．
| A．worth to do | B．worthy of being done |
| C．worthy doing | D．worth of doing |
Follow your doctor’s advice,_____ your cough will get worse.
| A．or | B．and | C．then | D．so |
I spent five hours_____________ the book__________ I paid 10 dollars.
| A．reading; that | B．to read; for that | C．read; which | D．reading; for which |
When the old man_____to walk back to his house，the sun____itself behind the mountain．
| A．was starting；hid | B．had started；had already hidden |
| C．had started；was hiding | D．started；had already hidden |