__________ many times, he still couldn't understand it.
| A．Having told | B．Though he had been told |
| C．He had been told | D．Been told |
—Do you know why the sun looks much bigger on the horizon?
—Well, well, .I have never read about that.
| A．that depends | B．I can’t tell you |
| C．there is some doubt | D．you really have me there |
Statistics show that house prices in the last 2 years have risen they had expected.
| A．twice as much as | B．as much as twice |
| C．as twice much as | D．as much twice as |
—I wonder why he has been acting so strangely these days.
—Recent pressure at work may his behavior.
| A．make for | B．stand for | C．change for | D．account for |
It was not rare(稀少) in that people in fifties were going to school for further study.
| A．90s; the | B．the 90s; / | C．90s; their | D．the 90s; their |
both his eyes focused on his book, he didn’t notice me enter the room.
| A．Through | B．Because of | C．For | D．With |