Jim was not _______ to the club, because at that time he was not a member of it.
| A．allowed | B．permitted | C．admitted | D．promoted |
The maths problem remained confusing to the boy although __________ over and over.
| A．explaining | B．being explained | C．explained | D．having explained |
Having now _________ 40, he feels that his football career is coming to an end.
| A．gone | B．turned | C．become | D．entered |
“We’ll make public schools __________ can be,” said the President in the speech.
| A．what they | B．what it | C．that they | D．all it |
–Have you thought of a topic for your article yet?
–No, I _____ a lot about it, but I haven't decided.
| A．will think | B．have been thinking | C．had thought | D．was thinking |
My command of English is not _____ yours.
| A．as half as | B．so half good as | C．good as half as | D．half as good as |