The computer was used in teaching.As a result，not only ________，but students became more interested in the lessons.
| A．saved was teachers' energy |
| B．was teachers' energy saved |
| C．teachers' energy was saved |
| D．was saved teachers' energy |
Please excuse my __ in without __.
| A．come; asking | B．coming; being asked | C．to come; being asked | D．coming; asking |
He can’t help __ housework, for he is busy __ for the examination.
| A．doing; preparing | B． to do; to prepare | C．doing; to prepare | D．to do; preparing |
________her mother had come, her face lit up.
| A．Hearing | B．Having heard | C．When hearing | D．When she heard |
The situation is more ________than ever. I'm ________about what to do next.
| A．puzzled; puzzled | B．puzzling; puzzling | C．puzzling; puzzled | D．puzzled; puzzling |
Linda can't attend the party________ at Tom's house at present because she is preparing a speech for the party ________ at Marie's house tomorrow.
| A．being held; to be held | B．to be held; held | C．held; being held | D．to be held; to be held |