______ he has gone abroad is not true.
| A．Whether | B．When | C．That | D．Why |
He managed to reach the summit of his career, but it was at the _________ of his health.
| A．consumption | B．credit | C．exhaustion | D．expense |
As is well known, the brain performs a very important _______, which controls the nerve system of the body.
| A．motion | B．action | C．function | D．fact |
_____ is a good form of exercise for both young and old.
| A．Walk | B．Walking |
| C．The walk | D．To walk |
“May I take your order now?” “We’d like three black _______ and two green _______.”
| A．coffee, cups of teas | B．coffees, teas |
| C．cups of coffee, tea | D．cup of coffees, teas |
She raised her finger to her lips as _____ for silence.
| A．an idea | B．a mark |
| C．a sign | D．a word |