I saw Mr Li into the school library just now.
| A．went | B．goes | C．going | D．go |
I out of the window and the police after the suspect（嫌疑人）.
| A．looked, watched, run | B．looked, saw, running |
| C．watched, saw, run | D．saw, watched, running |
Please tell me _____ to improve my English.
| A．how I can do . | B．what can I do. | C．what I can do. | D．how can I do.. |
Liu Yang is the first Chinese woman astronaut ______ has ever traveled in space.
| A．whom | B．which | C．who | D．whose |
Of the two coats, she’d like to choose the ________ one to save money for a book.
| A．cheapest | B．cheaper | C．more expensive | D．most expensive |
It’s _________ hard problem for the twins that ________ of them can work it out .
| A．so, neither | B．such a, none | C．so a, neither | D．such a, neither |