(A) when (B) while (C) because (D) after
2. Young people should go ____ they are most needed by the motherland.
(A) where (B) when (C) to where (D) than
3. Go and wash the skirt ____ you can wear it tomorrow.
(A) then (B) and (C) so (D) so that
4. I will finish writing the paper ____ it takes me all night.
(A) so that (B) however (C) even if (D) before
5. He talks ____ he knew everything about it.
(A) as if (B) even if (C) if (D) if only
6. We can’t claim ____ what we don’t know.
(A) knowing (B) to be known (C) to know (D) have known
7. His uncle narrowly escaped ____ in the famous battle.
(A) to kill (B) being killed (C) killing (D) to be killed
8. I regret ____ your advice.
(A) having accepted (B) not having accepted (C) to accept (D) not to accept
9. David tried ____ the window, but he could’t. It was stuck.
(A) close (B) to close (C) closing (D) having closed
10. Don’t warry, Philip is quite used ____ such heavy traffic as this.
(A) to driving (B) to have driven (C) to be driving (D) to drive