Wooddoesnotconductelectricity;________.

• A.sodoesn’trubber
• B.alsodoesn’trubber
• C.nordoesrubber
• D.norrubberdoes

ComradeLi________beinBeijingbecauseIsawhimintownonlyafewminutesago.

• A.mustn’t
• B.can’t
• C.maynot
• D.isn’tableto

Themorewelookedatthepicture,________.

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

Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.

• A.took
• B.brought
• C.showed
• D.came

Thisdiploma(毕业文凭)________thatyouhavecompletedhighschool.

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

Theproblem________whenthestudentsrefusedtodotheirhomework.

• A.arose
• B.aroused
• C.rose
• D.raised