_____ is no doubt _____ Jennifer will come to see me this weekend as usual.

Although Fleming discovered Penicillin, it was over a decade ______ someone else turned it into the great drug of the 20th century. 

(2014·苏锡常镇四市调研)—As a teenager，our son should have two or three hobbies to be really happy.—________，but how can he afford the time with so much homework every day?

 In the exam , the__________ you are, the__________ mistakes you’ll make. 

The man, ____ legs were badly hurt by a ______worker, was____to hospital at once.