.It’s about a time _____ there were black slaves in North America.
| A．where | B．when | C．how | D．that |
—What a mess! You are always so lazy!
—I’m not to blame, mum. I am what you _________ me.
| A．made | B．have made |
| C．will make | D．is making |
With the ______word “ PM2.5” constantly appearing in _____media reports, people pay greater attention to it and seek health tips for smoggy days.
| A．the; / | B．the; the |
| C．a; the | D．a; / |
If I had__________, I’d visit Europe, stopping at all the small interesting places.
A. a long enough holiday
B an enough long holiday
C. a holiday enough long
D. a long holiday enough
The news about the terrible flood there greatly discouraged __________ there for sightseeing.
| A．us from going | B．us to go |
| C．our going | D．our to go |
He's unlucky, and he's always suffering____________ luck one after another.
| A．a sick | B．an ill | C．sick | D．ill |