25.Selecting a mobile phone for personal use is no easy task because technology _____so rapidly.
| A．is changing | B．has changed | C．will have changed | D．will be changing |
It was what he meant rather than what he said ______ annoyed me.
| A．which | B．as | C．what | D．that |
It might have been John _____ bought a present for Mary yesterday.
| A．that | B．when | C．what | D．which |
What is it _____ his daughter needs most?
| A．what | B．which | C．that | D．if |
Who was it _____ saved the drowning girl?
| A．since | B．as | C．that | D．he |
“How was ______ they discovered the entrance to the underground palace?” “Totally by chance.”
| A．it that | B．he that | C．it when | D．he which |