extensive(正确答案) D. intensive 9.Jack aImost fell off the cliff, but managed to hang( )until help came. A. on(正确答案) B. about C. down D. back 10.By the year 2000, he( )in the power station for twenty years. A. has worked B. worked C. had worked(正确答案) D. works ...
If you are vaccinated and decide to travel, you'll want to check with the State Department for information on returning from your visit. As of Dec. 6, the CDC requires all passengers, regardless of vaccination status, traveling to the U.S. from a foreign country (including American citizen...
the 1917 Halifax explosion, the 1985 Mexico City earthquake, 9/11, and Hurricane Katrina, among others – and how the government, other well-established institutions, and ordinary citizens responded. Mostly, citizens rose to the occasion magnificently. But, often, the government, the military, an...
Adults ages 18 and older may bring up to 3 liters of wine, beer or liquor Mexican regulations limit the value of goods (above and beyond the personal possessions listed above) brought intoMexicoby U.S. citizens. Visitors arriving by air or sea can bring...