1 . With the number of confirmed cases rising, ________ the risks of infection remain high.

A．urgently

B．vitally

C．objectively

D．apparently

2 . The Boao Forum for Asia (BFA) Annual Conference 2022 which ended on Friday was closely watched by business runners and scholars worldwide as the global economy __________ needs impetus (推进力) and certainty.

A．intellectually

B．identically

C．barely

D．desperately

3 . His heart was filled with joy _________of arriving home in a couple of days.

A．having thought

B．when he thought

C．when thinking

D．to think

4 . ________ out of work for a few months, the couple had to take up the job of peddling.

A．To be

B．Being

C．Having been

D．Having

5 . Mr Mike, to________ laboratory we paid a visit last week, will give us a report on how to choose career this evening.

A．who

B．which

C．whose

D．whom