The basic design of the car is very similar to ________ of the earlier model.
| A．that | B．it |
| C．this | D．one |
Mandela met a lot of difficulties, he still fought for the equal rights of his people.
| A．Unless | B．Since |
| C．Even if | D．As if |
iPhone 6s have been on sale for over a month, but they are still hardfor Chinese.
| A．to be bought | B．bought |
| C．to buy | D．buy |
Sometimes we need true friends’ shoulders ____we can cry to free ourselves from pain.
| A．by which | B．on which |
| C．in which | D．with which |
If we don’t often use the newly learned words, we’ll _____ forget them.
| A．frequently | B．extremely |
| C．gradually | D．loosely |
It is widely____ that hard work can help students make progress.
| A．commanded | B．recognized |
| C．persuaded | D．decided |