Hardlyhadhefinishedhisspeech________theaudiencestartedcheering.
A、andThistest________anumberofmultiplechoicequestions.
Onlywhenyouhaveobtainedsufficientdata________cometoasoundconclusion.
Ihavebeenstudyinghereforfouryears,bynextsummerI________.
Iwonderifhecouldgetit________(do)beforetomorrow.
Some molecules are large enough ________ (see) under the electronic microscope.
