He has some doubt ________ he will succeed in his research work.
| A．whether | B．weather | C．which | D．that |
Nancy enjoyed herself so much ______ she visited her friends in Sydney last year.
| A．that | B．which | C．when | D．where |
Life is tough in the city. In order to lose their ______, some people drink alcohol.
| A．temper | B．strength | C．pressures | D．consciousness |
He is a strict but kind teacher,, in my opinion, my son loves and respects.
| A．one | B．he | C．the one who | D．he who |
Although he in America for a long time, he’s never regretted his making his mind to return to his own country.
| A．stayed | B．was staying | C．has stayed | D．had stayed |
It _____ we had stayed together for a couple of weeks ______ I found we had a lot in common.
| A．was until; when | B．wasn’t until; when |
| C．was until; that | D．wasn’t until; that |