07/12/2024
07/12/2024
07/12/2024
30. **B. need**
"Thanks, I'll give you a call if I **need** some help tomorrow." (Correct tense for a future possibility.)
31. **C. undergoes**
"The patient will not recover unless he **undergoes** an operation." (Follows the conditional rule: present tense in the 'if/unless' clause.)
32. **C. is**
"If it **is** convenient, let's go out for dinner tonight." (Present tense is used for real conditions in the present.)
33. **C. will have**
"If we meet at 9:00, we **will have** plenty of time to talk." (Future tense is used in the main clause of the first conditional.)
34. **C. concentrate**
"If you learn online, you will find it difficult to **concentrate**." (The infinitive form follows "difficult to.")
35. **B. ideas**
"Linh and Quan have similar **ideas** about online learning." (Makes sense contextually.)
36. **A. maintain**
"What do people do to **maintain** traditional lifestyles?" (Correct verb for preserving lifestyles.)
37. **A. bowing**
"Thais greet other people by **bowing**." (Correct gerund after "by.")
38. **C. staple**
"What is the **staple** food in your area? It's rice." ("Staple" means a main or essential food.)
39. **C. convenient**
"Many students like studying online because it’s **convenient**." (Best adjective to describe the benefits of online learning.)
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