______ you eat the correct foods ______ be able to keep fit and stay healthy.
| A．Unless; will you | B．Only if; you will |
| C．Only if; will you | D．Unless; you will |
“When my husband died five years ago，__________ was difficult to go from ‘we' to ‘me'，”said Joe Kita to us.
| A．I | B．that | C．it | D．which |
Professor White has written some short stories, but he is________known for his plays.
| A．good | B．well | C．better | D．best |
—How do you think of your visit to Qingdao?
—I enjoyed it. It was ________ than I expected.
| A．far more interesting | B．even much interesting |
| C．very more interesting | D．a lot much interesting |
—Do you think I could borrow your bike?
—________.
| A．Yes，you may borrow | B．Yes，you could |
| C．Yes，help yourself | D．Yes，go on |
At present ________ of the experiments ________done in labs after the new building has been finished.
| A．four fifth; is | B．four fifths; are |
| C．four fifth; are | D．four fifths; is |