(A)If someone (B)came into the store, (C)smile and say, “(D)May I help you?”a. If
b. came
c. smile
d. May
22 (A)If you (B)try these cosmetics, you (C)look five years (D)younger.a. If
b. try
c. look
d. younger
23 (A)If you (B)do not understand what were written in the (C)book, you (D)could ask Mr. Pike.a. If
b. do not understand
c. book
d. could ask
24 I (A)will come to meet Mr. Pike and tell him (B)about your problems if(C) you (D)didn’t solve them yourself.a. will come
b. about
c. if
d. didn’t solve
25 Sam (A)will not graduate (B)unless he (C)doesn’t pass all (D)the tests.a. will not
b. unless
c. doesn’t pass
d. the
26 (A)If there (B)isn’t enough (C)food, we (D)couldn’t continue our journey.a. If
b. isn’t enough
c. food
d. couldn’t continue
27 (A)Unless you (B)pour (C)oil on water, it (D)will float.a. Unless
b. pour
c. oil
d. will float
28 You (A)have to (B)take a taxi home (C)if you (D)want to leave now.a. have to
b. take
c. if
d. want to leave
29 (A)If anyone (B)will phone, (C)tell them (D)I’ll be back at 11:0a. If
b. will phone
c. tell
d. I’ll be
30 We (A)can hire a (B)minibus if (C)there (D)will be enough people.a. can hire
b. minibus
c. there
d. will be