题文
The program, __________ at improving the students' ability of listening and speaking, will surely be a success.
| A．to aim | B．aimed |
| C．to aiming | D．having aimed |
推荐试卷
The program, __________ at improving the students' ability of listening and speaking, will surely be a success.
| A．to aim | B．aimed |
| C．to aiming | D．having aimed |
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