Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
| A．becomes | B．became | C．has become | D．had become |
_____ makes a new invention such a wonderful thing is ____ it allows us to do something ____ we could not do before.
| A．What; what; what | B．That; that; \ | C．What; that; \ | D．That; what; that |
Over the past 40 years, 29 other Chinese people ____ Mount Qomolangma successfully.
| A．climbed | B．have climbed | C．had climbed | D．climb |
Mrs. Taylor has 8-year-old daughter who has gift for painting – she has won two national prizes .
| A．a ; a | B．an ; the | C．an ; a | D．the ; a |
_______far from school, the boy is often late.
| A．Living | B．Having lived | C．Being lived | D．Lived |
When I passed by, I heard her _____ in the room.
| A．sings | B．sang | C．singing | D．to sing |