1.I have been waiting .......... 4 o'clock.
A.since/ B.for
2.Sue has been sleeping ............ 20 minutes.
A.since/ B.for
3.Tim and Tina have been learning English .......... six years.
A.since/ B.for
4.Fred and Frida have been learning French .......... 1998.
A.since/ B.for
5.I haven't been on holiday ............ last July.
A.since/ B.for
6.Mary has been saving her money ............ many years.
A.since/ B.for
7.We have been living here ........... 16th August.
A.since/ B.for
8.John's parents have been residing in Germany .......... a long time.
A.since/ B.for
9.The cat hasn't eaten anything ............ yesterday.
A.since/ B.for
10.Have you seen her .......... she got married?
A.since/ B.for
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