Not until Mary reads her composition the second time ___________the spelling mistake.
| A．did she notice | B．she noticed | C．does she notice | D．she has noticed |
He tried his best to solve the problem, ________ difficult it was.
| A．however | B．no matter | C．whatever | D．although |
we’ll have our sports meet this week the weather.
| A．If; depend on | B．Whether; depend on |
| C．If; depends on | D．Whether; depends on |
It was hot weather that he went for a swim.
| A．such a | B．such | C．very | D．very a |
The new bridge is ______ the one built last year.
| A．three times width of | B．three times that of |
| C．three times the width | D．three times the width of |
You can’t imagine this lake used to be a beautiful place in our province.
| A．at any time | B．at one time | C．in no time | D．at times |