1.We often provide our children with toys,football or basketballs,( )
thatall children like these things .
A.thinking B.think C.to think D.thought(为什么要选A）
理由要尽量详细
2.Isn"t it time you got down to( )the papers?(为什么要选D）
A.mark B.be marked C.being marked D.marking
3.Eugenge"s never willing to alter any of his opinions.It"s no use ( )with him.(为什么选B）
A.to argue B.argeing C.aegued D.having argued
4.Energy drinks are not allow( ) in Australia but are brought in from NewYork .(为什么选B）
A.to have B.to be made C.to have been made D.to be making
5.Russ and Earl were auto mechanics ( )the same pay,but Earl had more ambition.(为什么选C)
A.to earn B.to be made C.to have been made D.to be making
6.The mother felt herself ( ) cold and her hands trembled as she read the letter from the battlefield.(为什么选A)
A,grow B.grown C.to grow Dto have grown
7.( ) auto matically,the e_mail will be received by all the club members .(为什么选A）
A.Mailed out B.Mailing out C.To be mailed out D.Having mailed out
8.All the staff in our company are considering( )to the city centre for fashion show.(为什么选B)
A.to go B.going C.to have gone D.having gone
9.（ ）the safety of gas,the government has checked the city"s gas supply system thoroughly.(为什么选A)
A.To ensure B.Ensuring C.Having ensured D.To have ensured
10.Shewantsherpaintings()in the gallery,but we don"t think they would be very popular.(为什么选D)
A.display B.to display C.displaying D.displayed