I didn’t quite follow him because he explained the theory _____that is too abstract for me.
—Do you mind if I use your reference book?—No, ______.
I really don’t know______ Mary found her lost necklace that day.
The program “Master’s Lectures” of CCTV is both interesting and instructive. No wonder it_______ a large audience.
Actually all the empty apartments in downtown areas have been rent at______ high prices.
Had he predicted the disaster, he wouldn’t have gone to the 2015 New Year’s celebration at the Bund, Shanghai. Luckily he ________ the accident..