Many websites have been _______ to help people study foreign languages.
| A．put off | B．put up |
C．put away | D．put on |
all scientists from Asia.
| A．Were present at the meeting | B．Present at the meeting were |
| C．Are present at the meeting | D．Present were at the meeting |
―David has made great progress recently.
―，and.
| A．So he has;so you have | B．So he has;so have you |
| C．So has he;so have you | D．So has he;so you have |
At no timethe first to use the nuclear weapon.
| A．will China be | B．will be China | C．is China | D．China is |
The teacher gave the books to all the students exceptwho had already taken them.
| A．ones | B．some | C．the ones | D．the others |
Bill is good at playing football,but whencomes to basketball,he knows nothing.
| A．he | B．that | C．this | D．it |