You’d better not bring your small son along, for this party is _____for only adults.
| A．available | B．approachable | C．automatic | D．appropriate |
—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．was working | B．would work | C．worked | D．had worked |
The concert by Lang Lang was so well ______ that all the tickets had been sold out on the first three days last month.
| A．received | B．recognized | C．admitted | D．taken |
She is a quiet girl at school，but sometimes she _____ be very naughty.
| A．should | B．would | C．will | D．can |
____ he met with the difficulty did he realize that our help was of great importance
| A．It was only when | B．Never until | C．Only before | D．It was not until |
The teacher suggested that the dictionary ______ at once .
| A．be referred to be bought | B．be referred to being bought |
| C．referred to being bought | D．referred to be bought |