--How long ___________ each other before they__________ married?
--For about a year.
| A．have they known;get | B．did they know; were going to get |
| C．do they know;are going to get | D．had they known; got |
—Can the project be finished as planned?
—Sure, _______ it completed in time, we’ll work two more hours a day.
| A．having got | B．to get |
| C．getting | D．get |
This novel is set in the modern city, San Francisco, so once_______, it will be very popular.
| A．publishes | B．having published |
| C．publishing | D．published |
Walter offered us a lift when he was leaving the office, but our work _______,we refused the offer.
| A．not finishing |
| B．had not been finished |
| C．not having finished |
| D．not having been finished |
—Is Bob still performing?
—Im afraid not.He is said _______ the stage already as he has become an official.
| A．to have left | B．to leave |
| C．to have been left | D．to be left |
I don’t know whether you happen_______, but I’m going to study in the U.S.A. this September.
A. to be heard B. to be hearing
C. to hear D. to have heard