Only after Mary read her composition the second time________ the spelling mistake.
| A．she noticed | B．she has noticed |
| C．did she notice | D．does she notice |
＿＿＿＿four years since I joined the army.
| A．There was | B．There is | C．It was | D．It is |
We had to be patient because it＿＿＿some time ＿＿＿we got the full results.
| A．has been ； since | B．had been ； until |
| C．was； after | D．would be ； before |
He lived in poverty, and he couldn’t help ＿＿＿.
| A．so | B．such | C．it | D．that |
I took ＿＿＿for granted that he would believe in us.
| A．that | B．the thing | C．it | D．this |
＿＿＿used to be thought that the earth was square.
| A．He | B．What | C．It | D．That |