I will lose _________ before an examination because of much worry.
| A．heart | B．appetite | C．favor | D．appeal |
The young man, _____ in heavy traffic on the way, got home an hour later than usual.
| A．catching | B．caught | C．having caught | D．to be caught |
Don’t run red lights, _____ you may get run over by a car.
| A．so | B．but | C．for | D．or |
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 |