The research on the new flu virus vaccine ischallenging and demanding Who do you think can do thejob— ____ my students have a try

53 Our music teacher often enjoyed _____playing the violin in his spare time

It’s not __________ book. __________ is on the desk.

Lily often ________ at school early,but this morning she ________ late.

The actor’s absurd behavior put an end to the last traces of ______ his fans had for him.