To reduce anger over shopping trips by mainlanders taking advantage of lower taxes, China scraps _________ Hong Kong entry for Shenzhen citizens, restricting their trips to "one visit a week" with their entry permit.
| A．unlimited | B．rare | C．illegal | D．Secure |
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 |
16．He is heavily ____ now, so he can’t pay for a new house.
| A．out of debt | B．get into debt | C．in debt | D．get out of debt |