Wewerebusy________(get)thingsreadyforthetrialproductionwhenhephonedus.
Hardlyhadhefinishedhisspeech________theaudiencestartedcheering.
Ishallneverforget________(meet)thelatePremierZhouduringhisinspectionofourfactory.
Tosucceedinascientificresearchproject________.
Onlywhenyouhaveobtainedsufficientdata________cometoasoundconclusion.