______ is know to all, china will be an________ and powerful country in 20 or 30 year’ time.
| A．That, advancing | B．This, advanced | C．As, advanced | D．It, advanced |
It’s only ten minutes ______ the meeting but he’s still not here yet.
| A．for | B．at | C．by | D．till |
By the time he was twelve he ______ a chemistry lab of his own.
| A．built | B．has built | C．had built | D．was building |
David jumped _____ to get the first ______ the beginning of the sports.
| A．enough high; in | B．enough highly; in |
| C．high enough; at | D．highly enough; at |
Who is the singer ______ you like best?
| A．that | B．who | C．whom | D．which |
Whose turn ___ the cleaning?
| A．is it doing | B．is it to do | C．is doing | D．is to do |