I can’t remember how many years ago _____ a fight broke out between the husband and the wife.
| A．it was when | B．was it that | C．it was that | D．was it when |
---- The battery in my cell phone is running low.
---- I _____ that last night before we went to bed.
| A．was noticing | B．have noticed | C．had noticed | D．would notice |
Glass is _______ and must be handled with great care.
| A．sensitive | B．smooth | C．flexible | D．fragile |
Maybe you could be an inventor ---- maybe even good enough to ______ an idea for the next iPhone or new medicine for cancer.
| A．put up with | B．keep up with | C．catch up with | D．come up with |
_______ excited his parents most is that he had passed the entrance exam and was admitted into his dream college.
| A．That | B．What | C．Which | D．It |
With ______ successful launching of Tiangong-1, China’s space dream has taken ______ step closer to reality.
| A．the; a | B．/; a | C．a; the | D．the; / |