Somemoleculesarelargeenough________(see)undertheelectronicmicroscope.

He________methathedecidedtoleaveonMonday.

• A.spoke
• B.said
• C.talked
• D.told

Thefloordoesnotlooksobadwhen________(sweep)clean. 

Hardlyhadhefinishedhisspeech________theaudiencestartedcheering.

• A.and
• B.when
• C.than
• D.as

Thistest________anumberofmultiplechoicequestions.

• A.composesof
• B.composesin
• C.consistsof
• D.consistsin

Ihavebeenstudyinghereforfouryears,bynextsummerI________.

• A.shallgraduate
• B.shallbegraduated
• C.shallbegraduating
• D.shallhavegraduated