Our city has developed into a big city, which is______it used to be.
| A．four times larger than that | B．four times the size of what |
| C．four times the size larger than what | D．as four times the size as that |
Obviously the only way to make people realize that an action is morally wrong is to punish them if they ________ it.
| A．confirm | B．create | C．commit | D．compensate |
—What’s the best way to reach you if I have a question during the day?
—I'm glad you ________. It’s best if you send me an email.
| A．ask | B．had asked | C．asked | D．were asking |
________ anyone come to my office, please tell them I'm not available before four o’clock.
| A．Might | B．Could | C．Would | D．Should |
Some friends persuaded me to apply to a combined M.D/Ph.D program ________ I could work in areas that wouldn’t be as open to me with only a Ph.D.
A. even if B. so that C. as if D. in that
When I try to understand ________ that prevents so many children from being happy, there seem to be three causes.
| A．why it is | B．what it does | C．why it does | D．what it is |