My brother is _____ his homework. He often _____ his homework at home.
| A．does； doing | B．doing； do |
| C．do； doing | D．doing； does |
Therewillbeastampshowinthemuseum______wevisitedlastweek.
| A．who | B．when | C．which | D．what |
—Asamemberofbusdrivers,IamproudofWuBin.
—___________.Heisaheroinmyheart.
| A．SoamI | B．SodoI |
| C．SoIam | D．Neither am I |
—Doyoubelievethatpaperismade_______wood?
—Yes,Ido.Andyoucanseethatbooksaremade________paper.
| A．from;from | B．from;of |
| C．of;from | D．of;of |
—Doyouknow________thisafternoon?
—I'mnotsure,butI'lltellyouassoonasshe________.
| A．howwillBettyarrive;starts |
| B．howBettywillarrive;willstart |
| C．whattimewillBettyarrive;willstart |
| D．whattimeBettywillarrive;starts |
Ifthereis______pollution,theairinourcitywillbe ________dirtier.
| A．less;more | B．more;much |
| C．less;less | D．more;more |