Iknowitisn’timportantbutIcan’thelp________aboutit.
A、buttothinkOnlywhenyouhaveobtainedsufficientdata________cometoasoundconclusion.
Hefellasleepimmediatelylastnight;hemust________(be)verytired.
Tosucceedinascientificresearchproject________.
I found ________ to answer all the questions within the time given.
Thistest________anumberofmultiplechoicequestions.
