1 . --I heard about your promotion; you ______ be thrilled.
--Not really, the new office is huge, but the workload has doubled.

A．must

B．can

C．shall

D．will

2 . ---Who can it be that hasn’t handed in his composition?
---It ______ be Robinson. He ______ it in yesterday.

A．will; should hand	B．must; should have handed
C．may; can’t hand	D．can; could have handed