_________ doesn’t seem to have been any difficulty solving the problem.
| A．There | B．It | C．He | D．That |
It is not where you come from or what you are, but the ability to do the job _____ matters.
| A．one | B．that | C．what | D．it |
I wondered what difficulty he had _________ the plan?
| A．to carry out | B．carrying out | C．carried out | D．with carrying out |
I _____ my university professor in the supermarket near my house, which was out of my expectation.
| A．came out | B．came across | C．came about | D．came along |
Thecleverboymadeaholeinthewall,____hecouldsee____was goingoninsidethe house.
| A．which;what | B．throughwhich;what | C．throughthat;what | D．what;that |
Heisnotsuchaman_______wouldleavehisworkhalfdone.
| A．that | B．which | C．who | D．as |