If we ________ one of the other uploading approaches, the process would have taken longer than one hour.
| A．used | B．had used |
| C．should use | D．would use |
_______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
| A．Even if | B． As far as | C．If only | D． So long as |
---How do you think I can make up with Qiong?
---Put aside_____ you disagree and try to find_____ you have in common.
| A．what, what | B．where, what | C．what, whether | D．where, whether |
“If" he added, “________ to carry out the plan, we would surely make a big profit for our company."
| A．to permit | B．to be permitted | C．permitting | D．Permitted |
Between the two periods of classes is a break,_____we can have a short rest.
| A．then | B．where | C．when | D．Which |
With all the novels he was interested in _______, he left the library and went back to his dorm.
| A．borrowed | B．borrowing | C．to borrow | D．borrow |