I never doubt _________his advice is of great _______to me.
| A．that, valuable |
| B．why, value |
| C．why, valuable |
| D．that , value |
Mary often forgets ________ her English book.
| A．bring | B．brought | C．is bringing | D．to bring |
The problem is __________ for Tom to work out.
| A．enough easy | B．easy enough | C．easily enough | D．enough easily |
Tony will visit his uncle’s farm _________ two weeks.
| A．at | B．on | C．in | D．after |
Please tell them _________ here. It’s dangerous.
| A．to park | B．don’t park | C．not park | D．not to park |
-- I am going to Paris on holiday this May Day.
-- Really? _______.
| A．You're welcome. | B．Wish you a good trip. |
| C．It's nothing. | D．Be back soon. |