The time he has devoted in the past years _______ the homeless is now considered _________ of great value.
| A．to help; being | B．to helping; to be | C．to help; to be | D．helping; being |
__ English is as important as __ exercise in English.
| A．Spoken; written | B．Speaking; written | C．Spoken; writing | D．Speak; write |
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 |