With a lot of difficult problem___, the newly-elected president is having a happy time.
| A．settled | B．setting | C．to settle | D．being settled |
19．—Flight 331 _____．I'd better be on my way．Goodbye．
—Bye．Happy landing!
| A．is announced | B．is being announced |
| C．is announcing | D．has announced |
20．We met _____ and have become good friends since then.
| A．by mistake | B．by accident | C．by ourselves | D．by the way |
19．_____ your advice, I’m sure to consider it and give you reply in time.
| A．In spite of | B．But for | C．Because of | D．As for |
18．--- Tom has a lot of parties recently.
---Yes, that may ____ why he didn’t do well in the test.
A, sum up B. add up to C. account for D. make sense of
17．I’m ____a diet, since I put ____ weight easily.
| A．in; on | B．on; in | C．in; in | D．on; on |