—We all had a lot of fun at the barbecue yesterday. Pity you weren’t there.
—I really should have gone with you but I _____ on some remaining problems.
| A．worked | B．was working | C．would work | D．would have worked |
Henry must have stayed up last night, ________ he looks so tired and sleepy.
| A．for | B．as | C．though | D．since |
It was __________ I went fishing in the open air yesterday.
| A．such a nice weather | B．so nice weather that |
| C．such nice weather that | D．a nice weather so that |
The Dragon Boat Festival______on the fifth day of the fifth month of the lunar year.
| A．falls | B．gets | C．bexomes | D．turns |
Richard was very strict with his two daughters,______them to compete against each other.
| A．to train | B．trained | C．and trains | D．training |
We do jobs_____they need to be done and that could be early in the morning or late at night.
| A．that | B．which | C．when | D．how |