21．We are going to ______ meeting room to have ______ important meeting．Please get the room
ready at once．
A．the; the B．a; the C．the; an D．a; an
22．—Wow! And what does your brother do?
—He’s a painter．He ______ in France this month．He has an exhibition there．
A．works B．worked C．has worked D．is working
23．______ turned out that an army officer set off the bombs．
A．What B．It C．They D．As
24．Have you any idea ______we can do to help those ______are in great need?
A．how; who B．what; / C．whether; that D．what; who
