According to an old story, Leif followed Biarni’s directions and sailed to _______ is believed to be the coast of present-day Canada.
| A．where | B．which | C．what | D．that |
Language is changing all the time. Some English words today can mean totally different things to _____ they meant before.
| A．which | B．that | C．不填 | D．what |
Give my regards to your parents when you _____ home.
| A．will call | B．call | C．have called | D．called |
The unemployment rate has decreased _____ 2% to 5.4%, compared with 7.4 % last year.
| A．by | B．from | C．with | D．on |
Beijing successfully held the 2014 APEC meeting, _____ won high praise from the member countries.
| A．what | B．that | C．which | D．who |
--- Bob, could I use your computer this evening?
--- Sorry. I _____ a report on it then.
| A．will be writing | B．have been writing |
| C．have written | D．will have written |