Iknowitisn’timportantbutIcan’thelp________aboutit.

• A.buttothink
• B.thinking
• C.think
• D.tothink

It________asashocktorealizethatIwasnotaloneintheroom.

• A.came
• B.appeared
• C.arrived
• D.reached

Themorewelookedatthepicture,________.

• A.thelesswelikedit
• B.welikeitless
• C.betterwelikedit
• D.itlookedbetter

Tosucceedinascientificresearchproject________.

• A.oneneedstobepersistent
• B.persistenceisneeded
• C.oneneedsbeapersistentperson
• D.oneneedsbeapersistentperson

Thisdiploma(毕业文凭)________thatyouhavecompletedhighschool.

• A.entitles
• B.certifies
• C.secures
• D.approves

________somanypeopleintheUnitedStatesbeenoutofworkastoday.

• A.Morethaneverbefore
• B.Inthepast,therehavenever
• C.Neverbeforehave
• D.Formerly,thereneverwere